Music
Tuner, metronome, chords, scales and the maths behind delay times and transposition. Built by a musician, so the tuner uses real pitch detection from your microphone and the chord tools sound each voicing.
MetronomeA precise online metronome with adjustable tempo, time signature and accent on beat 1.BPM TapperTap along to any song to find its tempo in BPM. Tap the button or the spacebar.Delay Time CalculatorConvert BPM to delay/reverb times in ms for every note value β straight, dotted and triplet.TunerTune any instrument with your mic. Real-time pitch & cents β all in your browser.Chord FinderLook up any chord: see its notes on a piano and hear it play.Scale FinderExplore scales and modes: see the notes on a piano and hear them play.Note β FrequencyConvert musical note names to frequency in Hz and back, with adjustable A4 tuning.Chord TransposerTranspose chord progressions up or down by semitones, preserving chord types, in your browser.Guitar & Ukulele ChordsLook up guitar and ukulele chord shapes with clear fretboard fingering diagrams, in your browser.Circle of FifthsExplore the circle of fifths interactively: key signatures, relative minors and neighbouring keys.Interval CalculatorFind the interval between two notes β its name and semitone count β or get the note a given interval away.Capo CalculatorWork out which chord shapes to play with a capo, or find the best capo position for an easier key.Drone GeneratorPlay a clean sustained drone tone for tuning and practice. Pick a note and octave or a raw frequency, choose a waveform, set the volume β click-free start and stop.Chord ProgressionPick a key and major/minor mode to see the diatonic chords (Iβvii) and play common progressions like IβVβviβIV, iiβVβI and the 12-bar blues β right in your browser.Ear TrainingTrain your ear: a random interval or chord plays, you guess from the buttons, and your score is tracked. Replay any time β runs entirely in your browser.