pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5917-CR73.ps) >>/Users/jc/w/tmp/Tune-5917-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Contra/CR73.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_59170.log 138291 Log file, useful mostly for debugging
Coll_59176.log 347555 Log file, useful mostly for debugging
Tune-5917-CR73.abc 1740 ABC music file with the extracted tune(s)
Tune-5917-CR73.ps 47678 PostScript
Tune-5917-CR73.txt 1740 Plain-text file with the extracted tune(s)
Tune-5917-get.log 4265 Log file, useful mostly for debugging
Tune-59175-get.log 4054 Log file, useful mostly for debugging
These files should be available for 24 hours.