pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-74899-CJ23.ps) >>/Users/jc/w/tmp/Tune-74899-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Contra/CJ23.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-74899-CJ23.abc 1948 ABC music file with the extracted tune(s)
Tune-74899-CJ23.ps 49407 PostScript
Tune-74899-CJ23.txt 1948 Plain-text file with the extracted tune(s)
Tune-74899-get.log 8277 Log file, useful mostly for debugging
These files should be available for 24 hours.