Search the mailing list archives for "jazz font". Especially, see
http://lists.gnu.org/archive/html/lilypond-user/2007-03/msg00385.html
For the template, you might find something useful in the mailing list
archives as well. Otherwise, I would recommend you to try to do it
yourself and if you get
Hi, I'm thinking about learning lilypond as a really fast way to come
up with jazz lead sheets like the ones
in my fake books.
I'm so used to the cool-looking handwritten fonts for chord symbols,
though. Is there a way to make that
happen for lilypond? Or, less importantly, the handwritten