pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-64283-Bully_of_the_Town.ps) >>/Users/jc/w/tmp/Tune-64283-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Square/Bully_of_the_Town.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_64283.log 299787 Log file, useful mostly for debugging
Tune-64283-Bully_of_the_Town.abc 912 ABC music file with the extracted tune(s)
Tune-64283-Bully_of_the_Town.ps 37022 PostScript
Tune-64283-Bully_of_the_Town.txt 912 Plain-text file with the extracted tune(s)
Tune-64283-get.log 4583 Log file, useful mostly for debugging
These files should be available for 24 hours.