pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9052-1850_bs.ps) >>/Users/jc/w/tmp/Tune-9052-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/oneills/1850/X/1850_bs.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_90523.log 140992 Log file, useful mostly for debugging
Form_90522.log 717 Log file, useful mostly for debugging
Form_90526.log 789 Log file, useful mostly for debugging
Form_90528.log 760 Log file, useful mostly for debugging
Tune-9052-1850_bs.abc 0 ABC music file with the extracted tune(s)
Tune-9052-1850_bs.ps 0 PostScript
Tune-9052-get.log 0 Log file, useful mostly for debugging
Tune-90522-get.log 8638 Log file, useful mostly for debugging
Tune-90527-get.log 3985 Log file, useful mostly for debugging
Tune-90529-get.log 3114 Log file, useful mostly for debugging
These files should be available for 24 hours.