pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9813-3204.ps) >>/Users/jc/w/tmp/Tune-9813-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR/3204=the_Irish_Wedding.abc2.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_98132.log 2256065 Log file, useful mostly for debugging
Coll_98133.log 1272046 Log file, useful mostly for debugging
Coll_98134.log 1281880 Log file, useful mostly for debugging
Form_98133.log 879 Log file, useful mostly for debugging
Form_98139.log 878 Log file, useful mostly for debugging
Tune-9813-3204.abc 1141 ABC music file with the extracted tune(s)
Tune-9813-3204.ps 39660 PostScript
Tune-9813-3204.txt 1141 Plain-text file with the extracted tune(s)
Tune-9813-get.log 4803 Log file, useful mostly for debugging
Tune-98137-3171-001.svg 38878 Scalable Vector Graphics format
Tune-98137-3171.abc 1274 ABC music file with the extracted tune(s)
Tune-98137-3171.txt 1274 Plain-text file with the extracted tune(s)
Tune-98137-get.log 3998 Log file, useful mostly for debugging
These files should be available for 24 hours.