IN THE STUDIO Audio Engineering & Music Production Techniques
In this page 20 sections

Reference

Appendix A: Quick Reference Guide

A. Pro Tools Keyboard Shortcuts

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The following shortcuts use the Mac convention (Cmd). For Windows, substitute Ctrl for Cmd and Alt for Option unless noted.

Session and File Management

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ActionMacWindows
New SessionCmd+NCtrl+N
Open SessionCmd+OCtrl+O
Save SessionCmd+SCtrl+S
Save AsCmd+Shift+SCtrl+Shift+S
Close SessionCmd+Shift+WCtrl+Shift+W
Import AudioCmd+Shift+ICtrl+Shift+I
Bounce to DiskCmd+Option+BCtrl+Alt+B

Transport and Playback

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ActionMac / Windows
Play / StopSpacebar
RecordCmd+Spacebar (Mac) / Ctrl+Spacebar (Win) or Numpad 3
Return to ZeroEnter (main keyboard) or Return
Go to EndOption+Return (Mac) / Ctrl+Enter (Win)
Loop PlaybackCmd+Shift+L (Mac) / Ctrl+Shift+L (Win) or Right-click Transport
Pre-roll / Post-roll ToggleCmd+K (Mac) / Ctrl+K (Win)
Count-off ToggleNumpad 8
MIDI Metronome Click ToggleNumpad 7
ModeShortcut
ShuffleF1
SlipF2
SpotF3
GridF4
ToolShortcut
ZoomerF5 (press twice for Single Zoom)
TrimmerF6
SelectorF7
GrabberF8
ScrubberF9
PencilF10
Smart ToolF6+F7 or F7+F8 simultaneously
ActionMacWindows
UndoCmd+ZCtrl+Z
RedoCmd+Shift+ZCtrl+Shift+Z
CutCmd+XCtrl+X
CopyCmd+CCtrl+C
PasteCmd+VCtrl+V
DuplicateCmd+DCtrl+D
Separate Clip at SelectionCmd+ECtrl+E
Heal SeparationCmd+HCtrl+H
Consolidate SelectionOption+Shift+3Alt+Shift+3
Strip SilenceCmd+UCtrl+U
Create FadeCmd+FCtrl+F
New Memory Location / MarkerEnter (numeric keypad)Enter (numeric keypad)

Tracks and Navigation

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ActionMacWindows
New TrackCmd+Shift+NCtrl+Shift+N
Delete TrackRight-click track name → DeleteSame
Group TracksCmd+GCtrl+G
Toggle Mix / Edit WindowCmd+= (equals)Ctrl+= (equals)
Toggle Video WindowCmd+9 (numpad)Ctrl+9 (numpad)
Zoom In HorizontalCmd+] or TCtrl+] or T
Zoom Out HorizontalCmd+[ or RCtrl+[ or R
Zoom to Fit SelectionOption+FAlt+F
Zoom to Fit Entire SessionOption+AAlt+A
Tab to TransientTab (with Tab to Transient enabled)Same

Playlists, Comping, and Clip Gain

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ActionMacWindows
New playlist (selected track)Control+\Start+\
New playlist on all tracksControl+Option+\Start+Alt+\
Duplicate playlistControl+Cmd+\Ctrl+Start+\
Copy selection to main playlist (comping)Control+Option+VStart+Alt+V
Nudge clip gain up / down (0.5 dB default)Control+Shift+Up/DownStart+Shift+Up/Down
Show / hide clip gain lineControl+Shift+ - (hyphen)Start+Shift+ - (hyphen)

B. Streaming Platform Loudness Targets

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Note: If your master is significantly louder than a platform's target, the platform will turn it down—preserving any distortion from heavy limiting while negating its loudness benefit. Master to the appropriate target.

PlatformTarget (LUFS)True Peak Ceiling
Spotify−14 LUFS (integrated)−1.0 dBTP
Apple Music−16 LUFS (integrated)−1.0 dBTP
YouTube−14 LUFS (integrated)−1.0 dBTP
Tidal−14 LUFS (integrated)−1.0 dBTP
Amazon Music−14 LUFS (integrated)−2.0 dBTP
Broadcast (US, ATSC A/85)−24 LKFS (dialogue)−2.0 dBTP
Broadcast (EU, EBU R128)−23 LUFS (integrated)−1.0 dBTP
CD (no normalization)N/A (typically −8 to −12 LUFS)0 dBFS sample peak

C. Standard Video Frame Rates

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StandardFrame RateRegion / Use
Film24 fpsWorldwide theatrical
NTSC Black & White30 fpsUnited States (legacy)
NTSC Color (Non-Drop)29.97 fpsUnited States — no frame skip
NTSC Color (Drop Frame)29.97 fps (DF)United States — frame numbers skipped to sync clock time (no frames lost)
PAL25 fpsEurope, Australia, parts of Asia
23.976 fps23.976 fpsHD broadcast (NTSC-compatible 24p)

Equalization

PluginDeveloperNotes
Pro-QFabFilterSurgical or musical; M/S, dynamic bands, analyzer
DMG EquilibriumDMG AudioDeep parametric with every filter mode
Massenburg DesignWorks MDWEQ6MassenburgPrecision parametric mastering EQ
Pultec EQP-1A (emulations)UAD / Waves / IKClassic musical EQ for sweetening

Dynamics / Compression

PluginDeveloperNotes
Pro-CFabFilterVersatile compressor, 14 styles, visual feedback
Pro-MBFabFilterTransparent multiband dynamics
CLA-76Waves1176 FET compressor emulation
CLA-2AWavesLA-2A optical compressor emulation
Pro-LFabFilterTrue-peak brickwall limiter, 8 algorithms, LUFS metering
Pro-DSFabFilterTransparent de-esser

Reverb and Delay

PluginDeveloperNotes
Pro-RFabFilterAlgorithmic reverb with visual decay display
Valhalla VintageVerbValhalla DSPVersatile vintage-style reverb
Valhalla DelayValhalla DSPTape/analog/digital delay modes
Soundtoys EchoBoySoundtoys30+ echo styles, analog character
AltiverbAudio EaseIndustry-standard convolution reverb

Mastering

PluginDeveloperNotes
OzoneiZotopeComplete mastering suite, AI Master Assistant, Stem Focus, LUFS metering
Pro-LFabFilterTrue-peak limiter, 8 algorithms, 32x oversampling, LUFS metering
Pro-QFabFilterSurgical EQ, Mid/Side, spectrum analyzer
Pro-MBFabFilterTransparent multiband dynamics
sootheoeksoundDynamic resonance suppression
Kramer Master TapeWavesTape saturation and warmth

Audio Repair and Post-Production

PluginDeveloperNotes
RXiZotopeIndustry-standard spectral editor, Dialogue Isolate, ARA2 integration
WNS Noise SuppressorWaves6-band real-time dialogue noise reduction
NS1 Noise SuppressorWavesSingle-fader intelligent noise reduction
VocAlign UltraSynchro ArtsARA2 vocal timing alignment for ADR and doubles

Saturation and Character

PluginDeveloperNotes
SaturnFabFilterMultiband saturation and distortion
DecapitatorSoundtoysAnalog saturation with multiple models
Kramer Master TapeWavesTape emulation with wow, flutter, and saturation
HEATAvid (Pro Tools Studio/Ultimate)Per-channel analog harmonic saturation

E. Common Audio File Formats

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FormatTypeBit DepthNotes
WAV (.wav)Uncompressed16/24/32-bitStandard PCM format, universal compatibility
AIFF (.aif)Uncompressed16/24/32-bitApple's PCM format, equivalent to WAV
BWF (.wav)Uncompressed16/24/32-bitBroadcast Wave with embedded timecode metadata
FLAC (.flac)Lossless compressedUp to 32-bit50% file size reduction, no quality loss
ALAC (.m4a)Lossless compressedUp to 32-bitApple's lossless codec, used in Apple Music
AAC (.m4a)Lossy compressedN/ASuccessor to MP3, better quality at same bitrate
MP3 (.mp3)Lossy compressedN/AUniversal compatibility, lossy perceptual coding
Ogg Vorbis (.ogg)Lossy compressedN/AOpen-source alternative to MP3/AAC

F. Video Codecs for Pro Tools

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For best results, convert interframe video to DNxHD or ProRes before importing into Pro Tools using DaVinci Resolve, FFmpeg, or Shutter Encoder.

CodecTypeRecommendation
Avid DNxHDIntraframeRecommended — optimized for HD editing, smooth scrubbing
Avid DNxHRIntraframeRecommended — extends DNxHD to 4K and beyond
Apple ProRes (Proxy–HQ)IntraframeRecommended — excellent performance, especially on Mac
H.264 / AVCInterframeAcceptable — smaller files but more CPU-intensive, possible sync issues
H.265 / HEVCInterframeUse with caution — highest compression, most CPU-intensive

G. 5.1 Surround Speaker Layout

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ChannelPositionAngle from Center
Left (L)Front left30° left
Center (C)Front center
Right (R)Front right30° right
Left Surround (Ls)Rear left110° left
Right Surround (Rs)Rear right110° right
LFE (Subwoofer)Front center (floor)N/A — non-directional low-frequency channel (band-limited to 120 Hz; bass-managed at 80 Hz)

All speakers at ear level. Surround angles per ITU-R BS.775—exact placement varies 100°–120° by room. Full context: Chapter 20.

Calibrating the rig (any surround or Atmos layout) — Placement gets the geometry right; calibration makes the system honest. Work in this order:

  1. Time-align every speaker. Unless every speaker sits exactly the same distance from your ears, delay the closer ones until all arrivals land together. The Dolby Atmos Renderer, most monitor controllers, and room-calibration software all provide per-speaker delays—measure each speaker's distance from the mix position and let the tool compute the offsets.
  2. Set levels one speaker at a time. Send band-limited pink noise at −20 dBFS to each channel individually (hard-assigned to the channel—never through a panner), and read an SPL meter at the mix position: C-weighted, slow response, at seated ear height, held at arm's length. Trim each channel until every speaker reads the same reference level—the working values from Chapter 7: 79–83 dB SPL for music rooms, 85 for film-style rooms.
  3. Calibrate the LFE. The LFE channel runs +10 dB of in-band gain over the mains. Set it on a spectrum analyzer, not the SPL meter alone—band-limited low frequency fools broadband meters. With bass management engaged (80 Hz crossover), confirm the +10 applies only to the LFE feed, not to the bass-managed low end of the other speakers.
  4. Verify and save. Walk the pink noise around every channel in order and re-trim anything that drifted, then store the result (monitor-controller preset or Renderer configuration). Recalibrate whenever a speaker, the desk, or the treatment moves.

A calibrated room is what makes “it sounds right at reference level” mean something—the loudness judgments in Chapters 18–19 assume it.

H. Typical Mastering Signal Chain

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OrderStagePurpose
1Compression (broadband)Glue the mix, control dynamics, even out levels
2EqualizationTonal balance, correct frequency issues, match genre expectations
3SaturationAdd analog warmth, harmonic richness, reduce harshness
4Multiband CompressionEven out specific frequency bands the broadband stage left uneven
5De-EsserTame residual harsh sibilance and resonance before the limiter
6Stereo ImagingEnhance width, focus center, adjust per frequency band (M/S)
7Limiting (brickwall, true peak)Maximize loudness, set output ceiling (−1.0 dBTP), prevent clipping
8DitherAdd noise shaping when reducing bit depth (e.g., 24-bit → 16-bit) as the absolute final step

I. Compression Starting Points by Source

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These are starting points, not rules. Every source is different. Use your ears, and always level-match when comparing compressed to uncompressed.

Lead Vocals — Ratio: 3:1 to 4:1. Attack: 5–15 ms (let the transient through). Release: 40–80 ms (follow the natural phrasing). Threshold: set for 3–6 dB of gain reduction on peaks. Consider serial compression: a gentle 2:1 first, then a more aggressive stage after EQ.

Background Vocals — Ratio: 4:1 to 6:1. Attack: 5–10 ms. Release: 50–100 ms. More aggressive than leads—you want backgrounds to sit consistently behind the lead without dynamic surprises.

Kick Drum — Ratio: 4:1 to 6:1. Attack: 10–30 ms (slower attack lets the beater transient through for punch). Release: 50–150 ms (fast enough to recover before the next hit). Threshold: 6–10 dB of reduction.

Snare Drum — Ratio: 4:1 to 6:1. Attack: 5–15 ms. Release: 50–100 ms. Faster attack tames the crack; slower attack preserves it. Choose based on the song.

Drum Bus — Ratio: 2:1 to 4:1. Attack: 10–30 ms (let transients breathe). Release: auto or 100–200 ms. Threshold: 2–4 dB of glue compression. Classic choices: SSL G-Bus compressor, API 2500, Shadow Hills Mastering Compressor.

Bass Guitar / Bass DI — Ratio: 4:1 to 8:1. Attack: 10–20 ms. Release: 40–80 ms. Bass often needs heavier compression for consistency. Consider a limiter after the compressor to catch remaining peaks.

Electric Guitar — Ratio: 2:1 to 4:1. Attack: 10–25 ms. Release: 50–150 ms. Already compressed by the amp—use gently. Distorted guitars may need very little or no additional compression.

Acoustic Guitar — Ratio: 3:1 to 5:1. Attack: 15–30 ms (preserve pick attack). Release: 100–200 ms. Threshold: 3–6 dB of reduction. An opto compressor (LA-2A style) works beautifully here.

Piano / Keys — Ratio: 2:1 to 3:1. Attack: 10–20 ms. Release: auto or 100–200 ms. Light touch—piano has enormous dynamic range that is often intentional.

Mix Bus / Stereo Bus — Ratio: 1.5:1 to 2:1. Attack: 10–30 ms. Release: auto or 100–300 ms. Threshold: 1–3 dB of gain reduction. This is glue, not control. If you are seeing more than 3 dB of reduction, your individual tracks need more work.

Mastering — Ratio: 1.5:1 to 2:1. Attack: 10–30 ms. Release: auto. Threshold: 1–2 dB of reduction maximum. Mastering compression is the gentlest of all—its job is to unify, not reshape.

J. Delay Times by BPM

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The formula for converting tempo to a quarter-note delay time in milliseconds:

Quarter−note delay (ms) = (60,000)/(BPM)

From the quarter note all other common note values follow:

  • Dotted 1/8 = 0.75 × quarter note
  • 1/8 note = quarter ÷ 2
  • 1/8 triplet = quarter ÷ 3
  • 1/16 note = quarter ÷ 4

The dotted eighth-note delay—the value that lands between beat and upbeat—is the signature of the U2 / Edge sound; tempo-synced delay is covered in full in Chapter 17.

BPM1/4 (ms)Dotted 1/8 (ms)1/8 (ms)1/8 Triplet (ms)1/16 (ms)
70857.1642.9428.6285.7214.3
85705.9529.4352.9235.3176.5
90666.7500.0333.3222.2166.7
100600.0450.0300.0200.0150.0
120500.0375.0250.0166.7125.0
140428.6321.4214.3142.9107.1
150400.0300.0200.0133.3100.0
170352.9264.7176.5117.688.2

K. EQ Quick Card

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Distilled from the full instrument-by-instrument EQ Reference Charts in Chapter 15. These are starting points; always use your ears. Full charts: Chapter 15.

SourceCut to cleanBoost to flatterWatch out
Kick drum400 Hz (hollow/cardboard)60–100 Hz (boom/bottom); 2.5–4 kHz (beater attack)Conflict with bass guitar at 60–80 Hz
Snare800 Hz (tinny rattle)100–200 Hz (fullness); 1–2 kHz (bang/transient); 5 kHz (buzz/snares)Over-boosting 120–240 Hz turns snare to fat mush
Hats / cymbals200–400 Hz (gong/clang)10–15 kHz (sizzle/shimmer)Boosting too broadly above 10 kHz adds noise and harshness
Bass / 808200 Hz (muddiness)60–80 Hz (bottom); 800 Hz–1 kHz (punch/clarity)Sub conflict with kick; check in mono
Electric guitar800 Hz (cheap/harsh); 200 Hz if muddy1.5–3 kHz (attack/cut); 7 kHz (sharpness/buzz)Stacking too much 3–5 kHz competes with vocal presence
Acoustic guitar240 Hz (muddiness/boom)5 kHz (attack/brightness); 10 kHz+ (air/string decay)Too much 250 Hz warmth turns to mud
Piano / keys80 Hz if subby; 2.5 kHz (honky)100 Hz (warmth); 5–7 kHz (attack/sharpness); 10 kHz (crispness)Narrow 2.5 kHz boost creates “honky-tonk” character
Lead vocal200 Hz (muddiness)2.5–5 kHz (presence/projection); 10–15 kHz (air/brightness)7–8 kHz sibilance—sweep and cut rather than broad boost
BG vocals3 kHz (breathy/soft tone behind lead)5 kHz (presence, if getting buried)Stacking multiple BG tracks without HPF creates low-mid buildup
Strings / pads200 Hz if it turns hollow; 7–10 kHz (scratchiness)200–300 Hz (fullness/body)Bow/string noise at 7.5–10 kHz—cut for smooth, boost for intimate

L. Studio Checklists

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The checklists below are condensed reprints drawn from the chapters where each workflow is taught in full. Use them at the session, not in place of the chapter. Full context and explanatory prose live in the chapters noted at the end of each checklist.

Session Handoff Checklist

  1. Every MIDI / Instrument track committed to audio (Track arrow Commit).
  2. All clips consolidated from bar 1 to song end on every track.
  3. All tracks named descriptively; color-coding preserved.
  4. All fades and crossfades applied to every clip (Ctrl+F / Cmd+F).
  5. Stems bounced at session bit depth and sample rate, named consistently, every stem starting at bar 1.
  6. Outboard hardware passes printed to audio; automation printed or documented.
  7. Session notes file included: tempo, key, reference track, plugin list, outboard list, editorial notes.
  8. Exchange format chosen: AAF for cross-DAW, native .ptx + Save Copy In for Pro Tools-to-Pro Tools.
  9. Session folder zipped; integrity verified by reopening on a clean machine before delivery.

Full context: Chapter 14.

Master-Ready Mix Checklist

  • Peaks between −3 and −6 dBFS on the bounced stereo file.
  • No brickwall limiter on the mix bus—leave final limiting to mastering.
  • Mono check passed; no element collapses or drops out when summed to mono.
  • Bounced at the session's native sample rate and bit depth.
  • Files clearly labeled: [Song]_v7_Mix.wav.
  • Reference track included or named for the mastering engineer.
  • Notes on intent (target loudness, genre reference, artist direction)—two sentences max.

Full context: Chapter 19.

Metadata Checklist for Every Delivered Master

  • Title (song name, not filename).
  • Artist.
  • Composer (all writers, “Lastname, Firstname”).
  • Year.
  • ISRC (twelve-character alphanumeric code; obtain via your distributor or usisrc.org).
  • Embed in WaveLab, in iZotope RX's File Info panel, or at the Pro Tools bounce dialog.

Full context: Chapter 19.

Portable Recording Rig Checklist

  • Laptop running Pro Tools, Reaper, or a dedicated recorder.
  • MADI or Dante interface to bridge the console output.
  • Managed Gigabit switch if using Dante (never trust venue house networking).
  • Redundant storage: record simultaneously to two drives or the recorder's dual card slots.
  • Backup DI on each critical channel (keys and bass at minimum) so a failed mic has a safety track.
  • Personal power conditioning—venue power is the one thing nobody warns you about.
  • Recording levels set conservatively (−18 dBFS nominal on 24-bit feeds); do not touch gains during the show.

Full context: Chapter 20.

Release / Registration Filing Checklist

  • Register composition + master at the U.S. Copyright Office (Form PA + Form SR; from $45 single-author/single-work to $65 standard application; copyright.gov).
  • Register with a PRO as both songwriter and publisher (ASCAP or BMI; SESAC and GMR are invitation-only).
  • Register compositions with the MLC for streaming mechanical royalties (themlc.com; free).
  • Register with SoundExchange for digital-performance royalties on sound recordings (soundexchange.com; free).
  • Obtain ISRC codes via your distributor or usisrc.org ($95 one-time fee; authorizes up to 100,000 codes per year).
  • Consider USPTO trademark registration for artist / studio name ($350 per class; uspto.gov).

Full context: Chapter 21.

Studio Assistant Tape Checklist

  • Confirm machine speed (15 or 30 IPS) and EQ standard (NAB vs. IEC) with the lead engineer.
  • Run alignment tones—100 Hz, 1 kHz, 10 kHz—on a fresh leader section.
  • Set bias for the specific tape stock.
  • Note operating level (250 or 320 nWb/m), tape brand and formulation, and noise reduction status on the reel box and in the session notes.
  • At session end, forward the reel to tails out before shelving it.

Full context: Chapter 4.

M. Per-Instrument Mic Placement Quick Reference

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Chapter 6 teaches the core sources in depth—acoustic and electric guitar, bass, the drum kit, strings, brass and woodwind families, piano, vocals, choir, and hand percussion (congas, djembe, shakers, and tambourine live there, not here). This table covers the long tail: the instruments that walk into a working studio a few times a year, each with one placement that gets you to a usable sound fast. Every entry follows Chapter 6's law—move the mic before you reach for EQ—and every mic listed is one this book has already put in your hands. Distances are starting points; let your ears finish the job.

Strings and Folk

InstrumentPlacement (the craft)Mic starting points
Upright bassAim at the bridge from 8–12 in, at bridge height—pointing into the f-hole booms. For jazz pizzicato, add a second mic up near the fingerboard for string definition and blend.U 47 FET, C 414, RE20
FiddleFolk cousin of Chapter 6's violin: mic 12–18 in above the body looking down at the strings, never bridge-close. A ribbon tames bowing edge on aggressive players.R-121, AEA R84, KM 184
BanjoBright and percussive: 6–12 in aimed where the neck joins the head, slightly off-axis. Straight at the bridge is harsh; back off to let the ring develop.KM 184, SM57
MandolinSDC 8–12 in at the lower f-hole, angled slightly off the pick attack. Chop rhythm parts can take the mic closer; melodic parts want air.KM 184, C 414
UkuleleTreat as a small, quiet acoustic guitar (Chapter 6): SDC 6–10 in at the neck-body joint. Small body means little boom—proximity is your friend here.KM 184
HarpTwo condensers 2–3 ft out facing the soundboard: one low for body, one high for string detail. The instrument is quieter than it looks—mind the noise floor.C 414 pair, KM 184 pair
Pedal steelTake the DI and mic the amp exactly as Chapter 6's electric guitar—the instrument is the player's hands plus the amp.SM57 or R-121 on the speaker

Brass and Winds

InstrumentPlacement (the craft)Mic starting points
Trumpet1–2 ft in front of the bell, a few degrees off-axis—dead-center is a laser beam. A ribbon takes the sizzle off; pad the mic, the SPL is real.R-121, RE20
TromboneSame geometry as trumpet with more air moving: 1–2 ft off the bell, off-axis, and watch the slide's travel so the player does not hit the stand.R-121, MD 421
French hornThe bell faces backward by design—the audience hears the horn off the wall. Mic from the front at 5–7 ft with a hard reflective surface a few feet behind the player; a close rear-bell mic is a spot blend for bite, not the main pickup.Coles 4038, C 414, U 87
Tuba1–2 ft above and slightly in front of the upward-facing bell, off-axis. The fundamental develops with distance—too close and you record valve clatter.RE20, U 47 FET
SaxophoneChapter 6's rule in one line: aim at the left-hand keys where body meets bell from 8–12 in for the full instrument; bell-only is honky, and never inside the bell.RE20, U 87, R-121
Clarinet / oboeThe sound radiates from the tone holes, not the bell: mic 12–18 in above the lower half of the instrument, looking down the body.KM 184, U 87
FluteMic 8–12 in above the middle of the tube. Toward the head joint adds breath (sometimes the point); angle slightly away to reduce it.KM 184, C 414
HarmonicaClean: a condenser at 6–12 in like a vocal. Chicago blues: cup a cheap mic against the harp, drive a small tube amp, and mic the amp—the distortion is the sound.KM 184 (clean); SM57 on the amp

Keys, Voice, and Electric

InstrumentPlacement (the craft)Mic starting points
Upright pianoOpen the top lid, two mics looking down in—one over the bass strings, one over the treble. Pull the instrument away from the wall; for more attack, remove the front panel and mic the soundboard.KM 184 pair, C 414 pair
Hammond B3 + LeslieMic the Leslie, not the organ: one or two mics on the upper horn rotor and one on the lower drum rotor. The rotation is the sound—keep enough distance that the Doppler swirl reads without wind thumps.SM57 (top), MD 421 or RE20 (bottom)
AccordionTwo voices, two mics: one on the treble (keyboard) side, one on the bass (button) side, 8–12 in each, blended to taste. The player breathes with the bellows—leave room to move.KM 184, C 414
VoiceoverCloser and drier than singing: 6–10 in into a dynamic or LDC, pop filter on, in the deadest space you have (Chapter 7). Consistency beats character—mark the mic position for retakes.SM7B, RE20, U 87

Percussion and Mallets

InstrumentPlacement (the craft)Mic starting points
Marimba / vibesStereo pair (XY or ORTF, Chapter 6) 2–3 ft above the bars. Too close and individual bars jump out and mallet click dominates—height evens the scale.KM 184 pair, C 414 pair
GlockenspielCondenser 2–3 ft above; never close—the transients are piercing at short range. A ribbon softens it when the part is exposed.KM 184, R-121
Timpani2–4 ft above each drum aimed at the head's edge, not the center (edge is tone, center is thud)—or one pair above the whole set. Serious SPL on fortissimo rolls.C 414, U 87
CajonTwo-mic it like a one-box drum kit: one mic 6–12 in off the front face for the slap, one at the rear port for the bass—then check polarity between them, exactly like snare top and bottom (Chapter 6).SM57 (front); Beta 52 or D112 (rear)
Steel panCondenser 1.5–3 ft above the pan, off-axis from the sticks. Close placement is clangy; a pair covers a section.KM 184, C 414