"Dolphin Don's Music School" is a CD-ROM with ten educational music games that teach both ear-training and music theory.  The lessons and games cover notes, rhythms, key signatures, intervals, and chords. Suitable for all ages from 6 through adult, Dolphin Don starts at the beginner level and continues to college music theory material.  The program is compatible with all versions of Microsoft Windows since Windows 95, or with a Macintosh running Virtual PC. "Dolphin Don's Music School" works with Windows 95, 98, 2000, NT, ME, or XP. It requires 32 Mb of memory, 12 Mb of hard disk space, and a sound card. There are ten different games in the package, with 24 grades in each game, for a total of 240 levels. The games are presented in the format of multimedia flash cards. You score points by correctly identifying a note, rhythm, key signature, interval, or chord that is shown on the screen or played through the sound card.