A Digital Signal Processing Primer, by Ken Steiglitz
Signal Processing Algorithms in Matlab, by Samuel D. Stearns and Ruth A. David
Friberg and Sundström's article entitled Swing Ratios and Ensemble Timing in Jazz Performance: Evidence for a Common Rhythmic Pattern in the Spring 2002 issue of Music Perception
The Psychology of Music, Diana Deutsch ed., second edition published in 1999 by Academic Press, NY.