Tone Lens — Live Band Key & Chord Finder

SONG KEY

—LISTENING

—

Ready for rehearsal

CURRENT KEY—

CHORD—

TEMPO—

BUILT-IN ACCURACY TESTS

Run a known song, then compare Tone Lens with the answer shown.

Ready for rehearsal

REHEARSAL TOOLS & SETTINGS

SONGINSTRUMENT VIEW

ROOM-READY

Rolling analysis smooths noisy full-band audio instead of reacting to every transient.

GLANCEABLE

Key, chord, and tempo are readable from across the room.

FULL SONG SCAN

Uploaded songs are charted directly on this device. Playback always uses the untouched original.