1. Strutt, J.W. (Lord Rayleigh): The Theory of Sound (1877)
2. Hudak, P., Makucevich, T., Gadde, S., Whong, B.: Haskore Music Notation ??? an Algebra of Music. J. Func. Prog.??6(3), 465???483 (1996);
3. Hudak, P.: Haskore Music Tutorial. In: Advanced Functional Programming, pp. 38???67 (1996), The system is maintained at http://www.haskell.org/haskore/
4. Boulanger, R.: The Csound Book (2000), See also the site, http://www.csounds.com
5. Smith, J.O.: Center for Computer Research in Music and Acoustics (CCRMA), Stanford University (2003), Web publications at http://www-ccrma.stanford.edu/~jos/;