pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1908-CR92.ps) >>/Users/jc/w/tmp/Tune-1908-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Contra/CR92.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_1908.log 743293 Log file, useful mostly for debugging
Tune-1908-CR92.abc 1504 ABC music file with the extracted tune(s)
Tune-1908-CR92.ps 47414 PostScript
Tune-1908-CR92.txt 1504 Plain-text file with the extracted tune(s)
Tune-1908-get.log 4334 Log file, useful mostly for debugging
Tune-19085-get.log 4989 Log file, useful mostly for debugging
Tune-19086-get.log 5768 Log file, useful mostly for debugging
Tune-19087-get.log 4982 Log file, useful mostly for debugging
Tune-19088-get.log 4217 Log file, useful mostly for debugging
These files should be available for 24 hours.