Music
Tempo, note durations and music theory worked out from the rules, not approximated.
Everything here is derived from music theory and arithmetic, so the same input always gives the same answer. Useful when a plugin has no tempo sync, or when you want the number rather than the feel.
Turn a tempo into note durations in milliseconds, for straight, dotted and triplet values.
Chord FinderThe notes of any chord, from a triad to a thirteenth, spelled the way you would write them.
Chord IdentifierType the notes you are playing and find out what the chord is called, inversions included.
Chord TransposerMove a chord chart from one key to another, keeping the layout and the spelling right.
Circle of FifthsEvery key signature, its relative minor and its neighbours, arranged the way they relate to each other.
Guitar FretboardAny scale or chord drawn on the neck, in seventeen tunings or one you type yourself, right-handed or left.
Interval CalculatorMeasure the interval between two notes, or find the note a given interval away.
MetronomeA metronome in your browser: time signatures, subdivisions, swing, polyrhythms, silent bars for working on fills, and a tempo that moves on its own.
Note Frequency ChartThe frequency of every note from C0 to B8 in hertz, for A4 = 440 Hz or any other A, and the nearest note to a frequency in cents.
Scale FinderThe notes of any scale, its degree formula, and the chords that come out of it.
Scale IdentifierType a set of notes and find out which scales they form, and on which tonic.
Tap TempoTap the space bar or a button along with the music and read the tempo in beats per minute.
Wavelength CalculatorHow long a sound wave is in air, either way round, at the temperature the air is actually at.