pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-90054-MissKellysReel.ps) >>/Users/jc/w/tmp/Tune-90054-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ryan-cole/Tunes/MissKellysReel.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_90054.log 257635 Log file, useful mostly for debugging
Tune-90054-MissKellysReel.abc 486 ABC music file with the extracted tune(s)
Tune-90054-MissKellysReel.ps 36464 PostScript
Tune-90054-MissKellysReel.txt 486 Plain-text file with the extracted tune(s)
Tune-90054-get.log 6264 Log file, useful mostly for debugging
These files should be available for 24 hours.