pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1049-All.ps) >>/Users/jc/w/tmp/Tune-1049-get.log 2>&1" returned status 256
http://www.andyhornby.net/Music/All Andys Tunes.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_10491.log 264789 Log file, useful mostly for debugging
Coll_10493.log 139177 Log file, useful mostly for debugging
Tune-1049-All.abc 359 ABC music file with the extracted tune(s)
Tune-1049-All.ps 35643 PostScript
Tune-1049-All.txt 359 Plain-text file with the extracted tune(s)
Tune-1049-get.log 14827 Log file, useful mostly for debugging
Tune-10492-get.log 3244 Log file, useful mostly for debugging
These files should be available for 24 hours.