pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2734-RattleTheBottlesReel.ps) >>/Users/jc/w/tmp/Tune-2734-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ryan-cole/Tunes/RattleTheBottlesReel.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_2734.log 151928 Log file, useful mostly for debugging
Tune-2734-RattleTheBottlesReel.abc 499 ABC music file with the extracted tune(s)
Tune-2734-RattleTheBottlesReel.ps 36160 PostScript
Tune-2734-RattleTheBottlesReel.txt 499 Plain-text file with the extracted tune(s)
Tune-2734-get.log 9782 Log file, useful mostly for debugging
Tune-27340-get.log 3356 Log file, useful mostly for debugging
Tune-27342-get.log 4481 Log file, useful mostly for debugging
Tune-27343-get.log 4011 Log file, useful mostly for debugging
Tune-27347-get.log 4132 Log file, useful mostly for debugging
These files should be available for 24 hours.