Practical music tools
Less guessing. Better combinations.
Find a song’s key and BPM, then compare tracks. Nothing is uploaded, and every recommendation is explained in plain language.
Mashup Compatibility Checker
Compare two songs by BPM and key, then get a role and transition recommendation.
Check two songs →LIVE · 02Tap BPM & Key Workspace
Tap BPM along with any song, translate musical keys into Camelot codes and find nearby compatible keys.
Open workspace →LIVE · 03Song Key & BPM Finder
Choose an audio file to detect its key, Camelot code and tempo. It is analyzed on your device, never uploaded.
Find a song’s key →LIVE · 04Key Transposer
See how a musical key moves when you pitch a track up or down by semitones.
Transpose a key →LIVE · 05BPM to ms Calculator
Turn a tempo into delay and reverb times for straight, dotted and triplet notes.
Calculate delay times →Your recordings stay on your device.
Most tools work from song information you enter. The key and BPM finder reads an audio file you choose, but the analysis runs in your browser: nothing is uploaded or stored.