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Tools

Tempo, harmony, tuning, and mix references. Built for the session.

Sixteen tools: metronome, tuner, chord builder, key matching, delay and reverb times, gain staging and loudness targets. Copy any value straight into your DAW.

Producer Toolbox

Tempo & Time

Every tool here follows the BPM you set.

BPM Control

Shared by every tool
140BPM

428.6 ms per beat

Metronome

Follows 140 BPM · M to start

Hz / ms / Beats Converter

At 140 BPM
Hz
ms
Beats
Seconds

Song Length ↔ Bars

At 140 BPM
Beats per bar
Duration27.43 s
Time → bars

Minutes · seconds

Bars420.0 beats

Reverb Time Calculator

Values in ms
SpacePre-DelayDecayTotal
Stadium(4 bars)
Hall(2 bars)
Large Room(1 bar)
Small Room(1/2 note)
Tight Ambience(1/4 note)

Delay Time Table

Values in ms
NoteStraightDottedTripletHz
1/1
1/2
1/4
1/8
1/16
1/32
1/64
1/128

Pitch & Harmony

Keys, chords, tuning and sample pitch.

Key & Scale

Click a chord to copy

Diatonic Notes

C–D–E–F–G–A–B

Scale Chords

Chord Progression Builder

Tap chords to build
Progression · 4/8

Chromatic Tuner

Uses your microphone
—
♭ −50cents+50 ♯

Play a single note close to your mic. Nothing is recorded or sent anywhere.

Note ↔ Frequency

Tap a key to hear it
NoteA4
Frequency440.00Hz

Pitch Converter

Sample and tape pitching
Semitones
Cents
Freq ratio
Playback speed

Camelot Key Match

Harmonic mixing
8A

A minor

Click a match to jump to it

Mix & Master

Frequencies, gain staging and delivery.

Frequency Guide

Tap a band to hear its centre
Low mids250–500 HzWarmth, or mud when it piles up. First place to cut.

Instrument ranges

  • Kick50–100 Hz thump, 3–5 kHz click
  • 808 / Sub bass40–80 Hz fundamental
  • Bass guitar80–250 Hz body, 700 Hz–1 kHz growl
  • Snare150–250 Hz body, 5 kHz crack
  • Hi-hats6–12 kHz shimmer
  • Male vocal120 Hz body, 3 kHz presence
  • Female vocal250 Hz body, 4 kHz presence
  • PianoFull range. Clean up 200–400 Hz in a mix
  • Guitar200 Hz body, 2–4 kHz definition

Gain & dB

Gain staging
Multiplier50.1% amplitude
DecibelsGain must be above 0
Headroom2.2 dBRoom to push

Loudness Targets

Integrated LUFS · true peak

  • Spotify

    Normal mode. Louder masters are turned down.

    Peak -1 dBTP

    -5.0 dB

  • Apple Music

    Sound Check reference level.

    Peak -1 dBTP

    -7.0 dB

  • YouTube

    Louder uploads are attenuated, quieter are not boosted.

    Peak -1 dBTP

    -5.0 dB

  • Tidal

    Normalized playback.

    Peak -1 dBTP

    -5.0 dB

  • Amazon Music

    Normalization on by default.

    Peak -2 dBTP

    -5.0 dB

  • SoundCloud

    Guideline only; no hard normalization.

    Peak -1 dBTP

    -5.0 dB

  • Broadcast (EBU R128)

    European TV and radio, ±0.5 LU.

    Peak -1 dBTP

    -14.0 dB

  • Club / DJ master

    Loud and dense. Leaves little headroom for codecs.

    Peak -0.3 dBTP

    +1.0 dB

Badge shows the gain a normalizing platform would apply. Targets are common guidance and change over time.

File Size

Uncompressed WAV / AIFF
Sample rate
Bit depth
Channels
File size
Per minute