Practical music tools
Less guessing. Better combinations.
Start with numbers you already know. These tools do not need copyrighted audio uploads and explain every recommendation in plain language.
Mashup Compatibility Checker
Compare two songs by BPM and key, then get a role and transition recommendation.
Check two songs →LIVE · 02BPM & Key Workspace
Tap a tempo, translate musical keys into Camelot codes and find nearby compatible keys.
Open workspace →LIVE · 03Key Transposer
See how a musical key moves when you pitch a track up or down by semitones.
Transpose a key →Why manual inputs first?
Useful without handling anyone’s recordings.
The launch tools work from song information you enter. We will add private, auto-deleting audio analysis only after its accuracy, storage and rights workflow are ready.