iPhone · iPad
TempoScope
A tempo tool that finds tempo and key in real time from the microphone, with a full metronome and delay and reverb time calculation in one app.
- Live tempo (BPM) and key detection from the microphone (key is for reference)
- Delay and reverb times in ms, worked out from the detected BPM
- 30–300 BPM metronome, bar maps and 59 drum style presets
- Audio file analysis: tempo, key and chord progression (chords are for reference)
- Record to the click and convert to MIDI (for reference); all analysis stays on your device
App StoreFree to start · Pro is a one-time lifetime purchase (not a subscription)
Try the free web tools
Analyze a whole audio file
Drop in an audio file to get tempo, key and chord progression in one pass. Chords are for reference only; full-song analysis is Pro, and free covers the first 60 seconds.
Record to MIDI
Record your playing to the click and it writes the notes down as a piano roll. It is for reference; recording and viewing are free, and exporting MIDI is Pro.
The whole metronome is free
30–300 BPM, several meters, subdivisions and six sounds, and it keeps clicking in the background.
How to use
- Let it listen
On the Live tab, play music near the phone to see tempo and key, with delay and reverb times calculated right away. - Analyze a file
Open an audio file on the File analysis tab to see tempo, key and chord progression. - Carry on with the metronome
Start the metronome at the tempo you found and play along. - Record your playing to MIDI
Record one instrument at a time to the click and check the result as a piano roll.
- iPhone · iPad
- The metronome is entirely free
- No internet, account or ads (analysis runs on your device)
- Tempo matched on all 13 known-answer tracks (small sample; key and chords are for reference)