The circle of fifths is a musical tool that helps musicians understand the relationships between the 12 pitches in Western music.

This musical nomogram visualises scales and chords. It can take the formula behind a scale or chord and visualise it geometrically.

The Tonnetz, which means "tone network" in German, is a conceptual lattice diagram that represents tonal space.

Quickly find chord freboard positions on the Guitar and ukulele.

Handheld toolkit you can physical get your hands. Durable, functional and pretty companions.