pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4444-Slieve_Gallen-Gm-24-6.ps) >>/Users/jc/w/tmp/Tune-4444-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ONeills/air/Slieve_Gallen-Gm-24-6.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_44444.log 1180 Log file, useful mostly for debugging
Tune-4444-Slieve_Gallen-Gm-24-6.abc 832 ABC music file with the extracted tune(s)
Tune-4444-Slieve_Gallen-Gm-24-6.ps 42534 PostScript
Tune-4444-Slieve_Gallen-Gm-24-6.txt 832 Plain-text file with the extracted tune(s)
Tune-4444-get.log 4712 Log file, useful mostly for debugging
Tune-44440-get.log 8548 Log file, useful mostly for debugging
Tune-44445-get.log 4154 Log file, useful mostly for debugging
Tune-44447-get.log 5400 Log file, useful mostly for debugging
Tune-44448-get.log 9298 Log file, useful mostly for debugging
Tune-44449-get.log 7602 Log file, useful mostly for debugging
These files should be available for 24 hours.