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Theory

• 41
• Pythagorean Tuning and Medieval Polyphony
• Article by Margo Schulter written in 1998.

• 42
• Tantrum
• Tool for the study of temperament anomalies.

• 43
• World Scale Depository
• Construction of a reference center of scale measurements throughout the world.

• 44
• Just Intonation Explained
• Technical introduction to just-intonation from the leading music writer of the Village Voice. Also, a selected just-intonation discography.

• 45
• American Festival of Microtonal Music
• The AFMM produces and commissions works which use pitches and musical scales which are not organized in the standard twelve tone to the octave equally tempered way.

• 46
• FreeNote Music: Microtonal Guitars & Recordings
• Microtonal instruments, recordings and books.

• 47
• R. L. Reid's Notes on Microtonal Composition
• Sound files and an introduction to the 43 tone scale.

• 48
• Interval
• Journal of musical research and development. (Published: 1978-1987)