pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3667-CJ60.ps) >>/Users/jc/w/tmp/Tune-3667-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Contra/CJ60.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_36674.log 305405 Log file, useful mostly for debugging
Tune-3667-CJ60.abc 2370 ABC music file with the extracted tune(s)
Tune-3667-CJ60.ps 52330 PostScript
Tune-3667-CJ60.txt 2370 Plain-text file with the extracted tune(s)
Tune-3667-get.log 4369 Log file, useful mostly for debugging
Tune-36671-get.log 5341 Log file, useful mostly for debugging
These files should be available for 24 hours.