List of musical works in unusual time signatures

Enjoyable! (I've always thought that composing and coding have a lot in common. Even bugs!)

Chopin's not in the signatures list (today), but he's well-represented in one reference there that dives into lots of "Extremes of Conventional Music Notation". [0] (Unpacking that stuff makes life more 'interesting' for students!)

[0] http://homes.sice.indiana.edu/donbyrd/CMNExtremes.htm