Pa600QT (Quarter Tone) version contains all the functionality of the standard Pa600, and adds a mini-keyboard on the left side, which can be used to customize quarter tone scales and quickly access scale presets. Along with all the Sounds and Styles that are found on the standard Pa600, The Pa600QT also contains additional Sound and Style data that is specific to Middle Eastern music genres. Ouds, bouzuks, kanouns, various percussion instruments, and many more sounds are joined by dozens of extra Styles that are suitable for traditional and modern music.