pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1768-Nellie_Jackson-D-32-3.ps) >>/Users/jc/w/tmp/Tune-1768-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/session/jig/Nellie_Jackson-D-32-3.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_1768.log 264661 Log file, useful mostly for debugging
Coll_17686.log 266066 Log file, useful mostly for debugging
Coll_17687.log 270281 Log file, useful mostly for debugging
Coll_17689.log 249206 Log file, useful mostly for debugging
Tune-1768-Nellie_Jackson-D-32-3.abc 816 ABC music file with the extracted tune(s)
Tune-1768-Nellie_Jackson-D-32-3.ps 36522 PostScript
Tune-1768-Nellie_Jackson-D-32-3.txt 816 Plain-text file with the extracted tune(s)
Tune-1768-get.log 4698 Log file, useful mostly for debugging
Tune-17684-get.log 4638 Log file, useful mostly for debugging
These files should be available for 24 hours.