pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4453-CR85.ps) >>/Users/jc/w/tmp/Tune-4453-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Contra/CR85.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-4453-CR85.abc 1921 ABC music file with the extracted tune(s)
Tune-4453-CR85.ps 48485 PostScript
Tune-4453-CR85.txt 1921 Plain-text file with the extracted tune(s)
Tune-4453-get.log 4378 Log file, useful mostly for debugging
Tune-44539-get.log 5400 Log file, useful mostly for debugging
These files should be available for 24 hours.