Piano Companion is flexible chord and scale dictionary with user libraries, reverse mode and a progression builder.
ChordIQ
ChordIQ
is a music-based mobile game focused on learning notes, guitar and piano chords in a fun and interactive way.
Songtive
Songtive is a songwriting tool, band and social network. Songtive helps to experiment with arrangements and chord progressions which is available for iOS/Android.
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