Midi Dimensions "Passport" Software Product Catalog: Passport Midi Interface, MIDI/4, MIDI/4plus, MIDI/8plus, Polywriter, Polywriter Utilities, Leadsheeter, Music Tutor, Midi Player. Half Moon Bay, CA: Passport Designs, Inc., 1985.

Computer Sheet Music Sales Literature. Half Moon Bay, CA: Passport Designs, Inc., undated.