pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2925-LiltingBansheeEtAl.ps) >>/Users/jc/w/tmp/Tune-2925-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/contrib/Tunes/LiltingBansheeEtAl.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_2925.log 137967 Log file, useful mostly for debugging
Coll_29250.log 136152 Log file, useful mostly for debugging
Coll_29254.log 266199 Log file, useful mostly for debugging
Tune-2925-LiltingBansheeEtAl.abc 196 ABC music file with the extracted tune(s)
Tune-2925-LiltingBansheeEtAl.ps 34774 PostScript
Tune-2925-LiltingBansheeEtAl.txt 196 Plain-text file with the extracted tune(s)
Tune-2925-get.log 4458 Log file, useful mostly for debugging
Tune-29259-get.log 4122 Log file, useful mostly for debugging
These files should be available for 24 hours.