pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-22994-GangTheSameGate2.ps) >>/Users/jc/w/tmp/Tune-22994-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/GangTheSameGate2.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_22994.log 64724 Log file, useful mostly for debugging
Form_22994.log 764 Log file, useful mostly for debugging
Tune-22994-GangTheSameGate2.abc 707 ABC music file with the extracted tune(s)
Tune-22994-GangTheSameGate2.ps 39603 PostScript
Tune-22994-GangTheSameGate2.txt 707 Plain-text file with the extracted tune(s)
Tune-22994-get.log 4369 Log file, useful mostly for debugging
These files should be available for 24 hours.