pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1515-new_CR.ps) >>/Users/jc/w/tmp/Tune-1515-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Contra/new_CR.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_15152.log 406565 Log file, useful mostly for debugging
Coll_15153.log 271685 Log file, useful mostly for debugging
Find_15158.log 1457 Log file, useful mostly for debugging
Tune-1515-get.log 19562 Log file, useful mostly for debugging
Tune-1515-new_CR.abc 15631 ABC music file with the extracted tune(s)
Tune-1515-new_CR.ps 170453 PostScript
Tune-1515-new_CR.txt 15631 Plain-text file with the extracted tune(s)
Tune-15152-get.log 5087 Log file, useful mostly for debugging
Tune-15154-get.log 4899 Log file, useful mostly for debugging
These files should be available for 24 hours.