Course Notes

Jan 30

• grids imposed on the musical dimensions of pitch and rhythm, useful for filtering output of algorithms
• pitch scales
• cyclic over octaves
• simple: chromatic (m2), whole tone (M2), m3, M3, tritone
• asymetric: major, minor, pentatonic
• non-cyclic over octaves
• circle of fourths, fifths
• direction counts in Indian ragas, some Western minor modes (up is different than down)
• rhythmic grids
• subdivided groupings (2, 3, 4... 5....7...)
• additive groupings are sometimes more complex (11, 15, etc.)
• polyrhythm
• building on listening for musical ideas, the assignment incorporates programming of an "idea change'
• next week's example: a trumpet solo from Herbie Hancock's Maiden Voyage