One I would like to know is what John Chambers uses for his excellent tune search (click). I presume that the tunes are only stored in ABC format and the MIDIS, gifs and postscript files are generated on the fly.

One note regarding ABC and posting to Mudcat that I discovered to my cost about a week ago. ABC can use the angle brackets and these are interpreted as opening HTML statements in the forum. Alan's program seems to produce ABC that avoids this but I have some ABC programs that don't.

Jon