Bendy glissandos

[address@hidden]

Hey,

Does anyone have any utilities to create bendy glissandos that I could pilfer?

Stuff that takes certain basic curves (parabolic, parts of sine periods, 
arbitrary polynomials over a range), models them with cubic beziers, and scales 
them horizontally and vertically to go between two notes?

Even better would be a little utility that will parse a svg document for paths 
and output them to be used In LilyPond for this sort of thing.

Cheers,
MS