pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9737-GhostDance.ps) >>/Users/jc/w/tmp/Tune-9737-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/GhostDance.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_97373.log 266474 Log file, useful mostly for debugging
Tune-9737-GhostDance.abc 764 ABC music file with the extracted tune(s)
Tune-9737-GhostDance.ps 37140 PostScript
Tune-9737-GhostDance.txt 764 Plain-text file with the extracted tune(s)
Tune-9737-get.log 5320 Log file, useful mostly for debugging
These files should be available for 24 hours.