Octavian Pro is the Swiss Army knife of music theory apps Featuring 550+ scales and 100+ chords, with deep options for viewing, listening, and cross-referencing, Octavian is the ultimate reference, learning, and teaching tool. Essential for all musicians, students, composers, and songwriters As seen in Keyboard Magazine (Jan 2010): Its a cheat sheet no keyboardist should leave home without.SCALES - 550+ scales from around the world and through history. A PDF user manual and video are available at http://www.bitnotic.com

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