Math: Publications
LMFDB L-function and modular form database
L C++ class library and command line program for computing zeros and values of L-functions. Includes data.
Modular Polynomials

Music: A 2001 note on tunings.
Why 12 notes to the octave? Includes a proposal for a 19 note octave (not meant to replace the 12 note octave).
I finally gave in and put some of my music on the web. Only for the seriously bored.
Warren Ashford's Theorem

Sketches: Some of my mathematical art is available on my website Features drawings, based on historic photos and paintings, of famous mathematicians, as well as more abstract mathematical art. Presently, we have posters of the following mathematicians:
Many more are planned.