pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9118-Sellengers_Round-C-24-2.ps) >>/Users/jc/w/tmp/Tune-9118-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/jig/Sellengers_Round-C-24-2.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_91182.log 601863 Log file, useful mostly for debugging
Coll_91187.log 311025 Log file, useful mostly for debugging
Coll_91188.log 311025 Log file, useful mostly for debugging
Tune-9118-Sellengers_Round-C-24-2.abc 781 ABC music file with the extracted tune(s)
Tune-9118-Sellengers_Round-C-24-2.ps 34729 PostScript
Tune-9118-Sellengers_Round-C-24-2.txt 781 Plain-text file with the extracted tune(s)
Tune-9118-get.log 5370 Log file, useful mostly for debugging
Tune-91189-get.log 3131 Log file, useful mostly for debugging
These files should be available for 24 hours.