A simple Android (2.1+) app for studying various facets of music theory.
Screenshots
Notes: Vertical Horizontal Settings
Key Signatures: Vertical Horizontal Settings
Note Identification
Currently supports the four most common clefs. Random note generation can be limited by a number of ledger lines above or below the staff.
Key Identification
Currently supports major and minor keys represented with sharps or flats. Keys can be generated in the same four octaves as the notes.