pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8136-Bellmans_Jig-A-32-2.ps) >>/Users/jc/w/tmp/Tune-8136-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/jig/Bellmans_Jig-A-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_81362.log 898838 Log file, useful mostly for debugging
Tune-8136-Bellmans_Jig-A-32-2.abc 441 ABC music file with the extracted tune(s)
Tune-8136-Bellmans_Jig-A-32-2.ps 34056 PostScript
Tune-8136-Bellmans_Jig-A-32-2.txt 441 Plain-text file with the extracted tune(s)
Tune-8136-get.log 4643 Log file, useful mostly for debugging
Tune-81367-get.log 3869 Log file, useful mostly for debugging
These files should be available for 24 hours.