pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3635-Fine_Companion-Gm-32-2.ps) >>/Users/jc/w/tmp/Tune-3635-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/jig1/Fine_Companion-Gm-32-2.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_36351.log 458550 Log file, useful mostly for debugging
Coll_36352.log 273093 Log file, useful mostly for debugging
Coll_36359.log 426239 Log file, useful mostly for debugging
Tune-3635-Fine_Companion-Gm-32-2.abc 593 ABC music file with the extracted tune(s)
Tune-3635-Fine_Companion-Gm-32-2.ps 34204 PostScript
Tune-3635-Fine_Companion-Gm-32-2.txt 593 Plain-text file with the extracted tune(s)
Tune-3635-get.log 4692 Log file, useful mostly for debugging
Tune-36350-get.log 7824 Log file, useful mostly for debugging
Tune-36355-get.log 4319 Log file, useful mostly for debugging
Tune-36356-get.log 4968 Log file, useful mostly for debugging
These files should be available for 24 hours.