pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6555-Kissed_Yestereen-Am-32-4.ps) >>/Users/jc/w/tmp/Tune-6555-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/jig/Kissed_Yestereen-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_65550.log 312431 Log file, useful mostly for debugging
Coll_65553.log 439825 Log file, useful mostly for debugging
Coll_65558.log 313835 Log file, useful mostly for debugging
Tune-6555-Kissed_Yestereen-Am-32-4.abc 836 ABC music file with the extracted tune(s)
Tune-6555-Kissed_Yestereen-Am-32-4.ps 34375 PostScript
Tune-6555-Kissed_Yestereen-Am-32-4.txt 836 Plain-text file with the extracted tune(s)
Tune-6555-get.log 4814 Log file, useful mostly for debugging
These files should be available for 24 hours.