pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4279-Breeches_Mary-Am-32-2.ps) >>/Users/jc/w/tmp/Tune-4279-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ONeills/jig/Breeches_Mary-Am-32-2.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_4279.log 669822 Log file, useful mostly for debugging
Coll_42793.log 274496 Log file, useful mostly for debugging
Coll_42798.log 270281 Log file, useful mostly for debugging
Tune-4279-Breeches_Mary-Am-32-2.abc 450 ABC music file with the extracted tune(s)
Tune-4279-Breeches_Mary-Am-32-2.ps 34579 PostScript
Tune-4279-Breeches_Mary-Am-32-2.txt 450 Plain-text file with the extracted tune(s)
Tune-4279-get.log 5287 Log file, useful mostly for debugging
These files should be available for 24 hours.