Marran Guitar Chord Wheel, Melody Tool with Base for Learning Guitar Chord Progression Transpose Fingering Practice

This melody tool contains 72 most commonly used chord charts in12 keys. And turn the circle platter you can clearly see the chords fingerings charts in each key and their corresponding scale degrees (from I to VII). The chord wheel adopts guitar number system in music , which can identify each chord in a key by a number, applying the chords number system to the fretboard. Easy to master the chord music . The back of the music transpose tool wheel with 36 seventh chord fingerings, which are major, minor, dominant 7th chords, makes the chord colorful. The front side contains the major triads, minor triads and half diminished sevenths. After practicing fingering and chord for a long time, you'll be to discover patterns, easily change keys, chord progressions, compose songs and even derive fingerings!