Free · for producers and DJs · in your browser
Tools for the studio and the booth, from the note to the file.
Find the note of a kick, count the tempo off a speaker, hum a bassline into MIDI, check which keys mix. In the browser, no plug-in, no account.
Each tool answers one question and ends in a number, a MIDI file or a WAV; your DAW or your decks take it from there. What you sing, play or drop in is read in the browser and nothing is uploaded.
They come out of Brumm, an app made in Berlin that turns a hum into an instrument inside a club track. Who makes them.
Tempo
BPM chart by genreEvery genre's tempo on one line, and yours across it.earsBPM counterIt listens, locks on the beat, gives the BPM and the delay times.mic or fileBPM finderChoose a song, get its tempo, half and double time and the delay times.mic or fileOnline metronomeAny tempo, any bar, a click that never drifts.earsTap tempoTap the beat, read the BPM, hear it clicked back.ears
Tempo by genre
Deep house BPM120 to 125 BPM, soft kick, late shakers.earsHardstyle BPM150 BPM, a kick with a tail, bass on the offbeat.earsHouse BPM115–130 BPM, the middle at 125, with swing.earsPsytrance BPM138 to 148 BPM, a bass on every 16th the kick leaves.earsTech house BPM125 to 128 BPM, the bass in the gaps.earsTechno BPM125 to 135 BPM written, faster in the clubs.earsTrance BPM138 at the centre, 125 to 150, offbeat bass.ears
Notes and pitch
808 tunerDrop an 808, read its note, retune it, save the WAV.fileHum to MIDIHum two bars; get MIDI and WAVs zipped.micKey finderHum the tune or choose a one-voice sample: the key, or one note's root.mic or fileNote frequency chartEvery note in hertz, C0 to B8, tap to hear.earsPitch detectorVoice, instrument or file: note, Hz, cents, octave-checked.mic or fileTone generatorAny note, frequency or cents; a sweep; a WAV loop.ears
432 Hz
Keys and the Camelot wheel
A major: scale and chords11B, seven chords, a loop in A major.earsA minor: scale and chordsNo sharps, seven chords, a loop in A minor.earsB flat major: scale and chordsTwo flats, seven chords, a loop in B♭ major.earsB minor: chord and scale10A, seven chords, a loop in B minor.earsC major: scale and chords8B, seven chords, a loop in C major.earsD major: scale and chords10B, seven chords, a loop in D major.earsD minor: scale and chordsOne flat, seven chords, a loop in D minor.earsE major: scale and chords12B, seven chords, a loop in E major.earsE minor: scale and chordsOne sharp, seven chords, a loop in E minor.earsF major: scale and chordsOne flat, seven chords, a loop in F major.earsG major: scale and chords9B, seven chords, a loop in G major.earsG minor: scale and chords6A, seven chords, a loop in G minor.ears