pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2180-Chris_Worrall.ps) >>/Users/jc/w/tmp/Tune-2180-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/OriginallyMine/Chris_Worrall.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_2180.log 462609 Log file, useful mostly for debugging
Coll_21809.log 932218 Log file, useful mostly for debugging
Form_21803.log 1771 Log file, useful mostly for debugging
Tune-2180-Chris_Worrall.abc 1055 ABC music file with the extracted tune(s)
Tune-2180-Chris_Worrall.ps 37303 PostScript
Tune-2180-Chris_Worrall.txt 1055 Plain-text file with the extracted tune(s)
Tune-2180-get.log 4491 Log file, useful mostly for debugging
Tune-21800-get.log 2051 Log file, useful mostly for debugging
Tune-21806-get.log 5030 Log file, useful mostly for debugging
These files should be available for 24 hours.