pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8228-October-Am-32-4.ps) >>/Users/jc/w/tmp/Tune-8228-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/jig/October-Am-32-4.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_82285.log 305405 Log file, useful mostly for debugging
Form_82285.log 778 Log file, useful mostly for debugging
Tune-8228-October-Am-32-4.abc 674 ABC music file with the extracted tune(s)
Tune-8228-October-Am-32-4.ps 36269 PostScript
Tune-8228-October-Am-32-4.txt 674 Plain-text file with the extracted tune(s)
Tune-8228-get.log 4527 Log file, useful mostly for debugging
Tune-82288-get.log 2719 Log file, useful mostly for debugging
These files should be available for 24 hours.