Musician Tools
All Tools
Interactive tools built for musicians. Tune up, lock in your timing, train your ears, and master music theory — right in your browser.
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Explorer — $5.99/mo
Player — $1.00/mo
Free
Circle of Fifths
Interactive circle showing all 12 keys, their relative minors, sharps, flats, and common chord progressions.
Free
Frequency Chart
Interactive frequency reference for 8 instruments. Visualize EQ ranges and find problem frequencies fast.
Free
BPM Calculator
Tap to find your tempo or convert BPM to milliseconds for delay and reverb settings.
Explorer
Tuner
Chromatic pitch detection via microphone. Get in tune before every session.
Explorer
Metronome
Rock-solid tempo keeper. Tap tempo, multiple time signatures, and accent control.
Explorer
Drum Machine
16-step sequencer with 6 synth sounds, swing control, and built-in presets. Program beats right in your browser.
Explorer
Key & Scale Reference
Quick-reference guide for all major and minor keys, scales, and their notes.
Explorer
Music Theory
Key signatures, chord progressions, and harmony tools. Master keys, scales, and composition.
Player
Guitar Chord Charts
Interactive chord diagrams for guitar. Browse major, minor, 7th, and extended chords with finger positions.
Player
Interval Training
Identify the distance between two notes. Train your ear to recognize every interval from minor 2nd to octave.
Player
Delay Time Calculator
Sync your delay effects perfectly. Enter your BPM and note value to get the exact delay time in milliseconds.
Player
Piano Chord Charts
Visual chord diagrams for piano. See root position and inversions for all chord types across all 12 keys.
Player
Chord Recognition
Identify chord qualities by ear. Distinguish major, minor, diminished, augmented, and 7th chords.
Player
Scale Identification
Identify scales by ear. Recognize major, minor, pentatonic, and modal scales from audio examples.
Player
Sample Rate Converter
Understand sample rate and bit depth. See how audio quality changes at 44.1kHz vs 96kHz vs 192kHz.
Player
dB Calculator
Convert between decibels, voltage, and power ratios. Essential for understanding audio levels and gear specs.
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