pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2577-32802_LITTLE_JIMS_HORNPIPE.ps) >>/Users/jc/w/tmp/Tune-2577-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/32802_LITTLE_JIMS_HORNPIPE.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_25772.log 142160 Log file, useful mostly for debugging
Coll_25773.log 263256 Log file, useful mostly for debugging
Coll_25778.log 779415 Log file, useful mostly for debugging
Form_25770.log 888 Log file, useful mostly for debugging
Form_25771.log 834 Log file, useful mostly for debugging
Form_25777.log 970 Log file, useful mostly for debugging
Tune-2577-32802_LITTLE_JIMS_HORNPIPE.abc 729 ABC music file with the extracted tune(s)
Tune-2577-32802_LITTLE_JIMS_HORNPIPE.ps 39460 PostScript
Tune-2577-32802_LITTLE_JIMS_HORNPIPE.txt 729 Plain-text file with the extracted tune(s)
Tune-2577-get.log 4992 Log file, useful mostly for debugging
Tune-25770-get.log 1718 Log file, useful mostly for debugging
Tune-25778-get.log 3195 Log file, useful mostly for debugging
These files should be available for 24 hours.