Free · for mixing · in your phone's browser
Free DJ tools: tempo first, then key.
For mixing, not producing: find a track's tempo when the software can't, know what a genre runs at, and mix in key so two tracks don't clash. Four steps, in the order you need them behind the decks.
Mika runs the night in the app. At your decks he counts: tempo, key, next track.
- What tempo is this?BPM counter
Hold the phone to the speaker. It locks after eight beats, shows how sure it is, and offers half and double time, because 87 and 174 are the same beat.
mic - Too loud to listen?Tap tempo
Tap along on the big pad: the BPM shows from the second tap, settles after eight, and a click plays back so you can check it.
ears - What does the genre run at?Tempo by genre
Twenty genres, from lo-fi at 76 to drum and bass at 174, each with its range and a groove to play.
ears - Will these two mix?Keys
All 24 keys with their Camelot number and the keys that mix with each: one step around the wheel, or across to the relative.
ears - Your own track?Brumm, the app
Hum a line over a running club track, and it becomes an instrument in the mix.
mic
Genre tempos at a glance
The usual tempo of each genre; its page gives the range and plays a groove at it.
- Lo-fi BPM76
- R&B BPM86
- Reggaeton BPM90
- Hip-hop BPM92
- Pop BPM98
- Afrobeats BPM105
- Amapiano BPM113
- Deep house BPM122
- House BPM124
- Tech house BPM126
- Techno BPM130
- UK garage BPM132
- Breakbeat BPM134
- Trance BPM138
- Dubstep BPM140
- Trap BPM144
- Psytrance BPM145
- Hardstyle BPM150
- Footwork BPM160
- Drum and bass BPM174
Mixing in key: the Camelot wheel
Every key has a number from 1 to 12 and a letter: A for minor, B for major. Two tracks mix cleanly on the same number, one number up or down, or across to the other letter: 8A, A minor, and 8B, C major, share all their notes. Two numbers up is the energy boost.
| A · minor | B · major |
|---|---|
| 1A G♯ minor | 1B B major |
| 2A E♭ minor | 2B F♯ major |
| 3A B♭ minor | 3B D♭ major |
| 4A F minor | 4B A♭ major |
| 5A C minor | 5B E♭ major |
| 6A G minor | 6B B♭ major |
| 7A D minor | 7B F major |
| 8A A minor | 8B C major |
| 9A E minor | 9B G major |
| 10A B minor | 10B D major |
| 11A F♯ minor | 11B A major |
| 12A C♯ minor | 12B E major |
Tempo tips
- Half and double: 87 and 174 are one beat counted two ways; drum and bass and hip-hop meet on that line.
- A few BPM is a nudge, more is audible: the pitch moves with the tempo unless your player locks the key. About 6 % faster is a semitone up.
- Read the range, not the single number: house sits anywhere from 115 to 130.
What these tools can't tell you
The BPM counter needs a clear beat; ambient, rubato or very busy music may give no number, and it says so. The key pages show a key you pick; they don't detect the key of a track or read your files. Genre tempos are the usual ranges, not rules.
Producing rather than mixing? The producer tools go from the note to the file.
The BPM counter opens the microphone on a tap and closes it when you stop; the sound is read in the browser and nothing is kept or sent. Tap tempo and the genre and key pages need no microphone; their sounds load on the first tap. How the site counts visits.
Found what you came for?
Noted.