pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6158-pipersClub.ps) >>/Users/jc/w/tmp/Tune-6158-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/redhawk.org/other/pipersClub.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_61580.log 256329 Log file, useful mostly for debugging
Coll_61581.log 259149 Log file, useful mostly for debugging
Coll_61587.log 1014236 Log file, useful mostly for debugging
Coll_61588.log 261969 Log file, useful mostly for debugging
List61583.log 88 Log file, useful mostly for debugging
List61589.log 87 Log file, useful mostly for debugging
Tune-6158-get.log 54258 Log file, useful mostly for debugging
Tune-6158-pipersClub.abc 298 ABC music file with the extracted tune(s)
Tune-6158-pipersClub.ps 34361 PostScript
Tune-6158-pipersClub.txt 298 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.