pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-24089-James_Scott_Skinner.ps) >>/Users/jc/w/tmp/Tune-24089-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/by/James_Scott_Skinner.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_24089.log 256329 Log file, useful mostly for debugging
Tune-24089-James_Scott_Skinner.abc 834 ABC music file with the extracted tune(s)
Tune-24089-James_Scott_Skinner.ps 37556 PostScript
Tune-24089-James_Scott_Skinner.txt 834 Plain-text file with the extracted tune(s)
Tune-24089-get.log 4391 Log file, useful mostly for debugging
These files should be available for 24 hours.