pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3588-TeaInTheMorningJig.ps) >>/Users/jc/w/tmp/Tune-3588-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ryan-cole/Tunes/TeaInTheMorningJig.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_35886.log 151928 Log file, useful mostly for debugging
Tune-3588-TeaInTheMorningJig.abc 458 ABC music file with the extracted tune(s)
Tune-3588-TeaInTheMorningJig.ps 35950 PostScript
Tune-3588-TeaInTheMorningJig.txt 458 Plain-text file with the extracted tune(s)
Tune-3588-get.log 4705 Log file, useful mostly for debugging
Tune-35881-get.log 8192 Log file, useful mostly for debugging
Tune-35882-get.log 3506 Log file, useful mostly for debugging
Tune-35887-get.log 8680 Log file, useful mostly for debugging
Tune-35888-get.log 3918 Log file, useful mostly for debugging
These files should be available for 24 hours.