pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2795-DaisyInDecember.ps) >>/Users/jc/w/tmp/Tune-2795-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Contra/DaisyInDecember.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_27954.log 431855 Log file, useful mostly for debugging
Coll_27959.log 302595 Log file, useful mostly for debugging
Tune-2795-DaisyInDecember.abc 1142 ABC music file with the extracted tune(s)
Tune-2795-DaisyInDecember.ps 38945 PostScript
Tune-2795-DaisyInDecember.txt 1142 Plain-text file with the extracted tune(s)
Tune-2795-get.log 5097 Log file, useful mostly for debugging
Tune-27951-get.log 4484 Log file, useful mostly for debugging
Tune-27956-get.log 4238 Log file, useful mostly for debugging
Tune-27957-get.log 3424 Log file, useful mostly for debugging
These files should be available for 24 hours.