pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-85842-FiddlinRound0.ps) >>/Users/jc/w/tmp/Tune-85842-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/FiddlinRound0.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_85842.log 938301 Log file, useful mostly for debugging
Tune-85842-FiddlinRound0.abc 1684 ABC music file with the extracted tune(s)
Tune-85842-FiddlinRound0.ps 51578 PostScript
Tune-85842-FiddlinRound0.txt 1684 Plain-text file with the extracted tune(s)
Tune-85842-get.log 4933 Log file, useful mostly for debugging
These files should be available for 24 hours.