pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3095-MadRobin.ps) >>/Users/jc/w/tmp/Tune-3095-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/MadRobin.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_30958.log 452809 Log file, useful mostly for debugging
Tune-3095-MadRobin.abc 294 ABC music file with the extracted tune(s)
Tune-3095-MadRobin.ps 32798 PostScript
Tune-3095-MadRobin.txt 294 Plain-text file with the extracted tune(s)
Tune-3095-get.log 4356 Log file, useful mostly for debugging
Tune-30952-get.log 8508 Log file, useful mostly for debugging
Tune-30954-get.log 5160 Log file, useful mostly for debugging
Tune-30955-get.log 3200 Log file, useful mostly for debugging
Tune-30956-get.log 3638 Log file, useful mostly for debugging
Tune-30957-get.log 11709 Log file, useful mostly for debugging
Tune-30958-get.log 5073 Log file, useful mostly for debugging
These files should be available for 24 hours.