FretMaster

FretMaster is a simple game to help you learn the notes of the fretboard. It supports a wide variety of stringed instruments, in any orientation you prefer, and also allows you to select alternate tuning. The key of the game may be altered by clicking the "key selection" button (treble clef). Selecting a different key will determine if notes are shown as sharps or flats and the game also allows exclusion of notes outside the major scale of the selected key.

The FretMaster game is also included in the StringMaster application - a comprehensive set of tools for stringed instrument musicians that also includes Chords, Scales, Comparison and Song Writing functionality.