A music game where you have to hit notes to achieve a highscore. You can select a song from the server or any local midi file and the game generates notes to hit out of the song and plays it back. Higher difficulties lead to more notes and higher note-frequencies to hit but generate higher scores as well. Basically for anyone who knows VOS (Virtual Orchestra Studio - which doesn't work well on modern systems anymore) or fans of music games in general.
Battle Theme of Star Ocean 2 played on desktop on normal difficulty