pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-51564-Bourree_21.ps) >>/Users/jc/w/tmp/Tune-51564-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/bourree/Bourree_21.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_51564.log 240774 Log file, useful mostly for debugging
Tune-51564-Bourree_21.abc 286 ABC music file with the extracted tune(s)
Tune-51564-Bourree_21.ps 33319 PostScript
Tune-51564-Bourree_21.txt 286 Plain-text file with the extracted tune(s)
Tune-51564-get.log 4412 Log file, useful mostly for debugging
These files should be available for 24 hours.