pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-474-3020_.ps) >>/Users/jc/w/tmp/Tune-474-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CSR/3020_.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_4741.log 712421 Log file, useful mostly for debugging
Coll_47410.log 445809 Log file, useful mostly for debugging
Coll_4742.log 607537 Log file, useful mostly for debugging
Coll_47421.log 445810 Log file, useful mostly for debugging
Coll_47422.log 451410 Log file, useful mostly for debugging
Coll_47436.log 433210 Log file, useful mostly for debugging
Coll_47440.log 1751041 Log file, useful mostly for debugging
Coll_47451.log 1341628 Log file, useful mostly for debugging
Coll_47467.log 434609 Log file, useful mostly for debugging
Coll_47468.log 440210 Log file, useful mostly for debugging
Coll_47478.log 447210 Log file, useful mostly for debugging
Coll_47479.log 148655 Log file, useful mostly for debugging
Coll_4748.log 894416 Log file, useful mostly for debugging
Coll_47489.log 433209 Log file, useful mostly for debugging
Coll_4749.log 294610 Log file, useful mostly for debugging
Coll_47491.log 270810 Log file, useful mostly for debugging
Form_47434.log 1000 Log file, useful mostly for debugging
Form_47462.log 940 Log file, useful mostly for debugging
Form_4748.log 1897 Log file, useful mostly for debugging
Tune-474-3020_.abc 61 ABC music file with the extracted tune(s)
Tune-474-3020_.ps 6 PostScript
Tune-474-3020_.txt 61 Plain-text file with the extracted tune(s)
Tune-474-get.log 3825 Log file, useful mostly for debugging
Tune-47404-get.log 7535 Log file, useful mostly for debugging
Tune-47432-get.log 1212 Log file, useful mostly for debugging
Tune-47463-get.log 1336 Log file, useful mostly for debugging
Tune-47467-get.log 3386 Log file, useful mostly for debugging
These files should be available for 24 hours.