pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9608-RoundReelOfEight3.ps) >>/Users/jc/w/tmp/Tune-9608-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/RoundReelOfEight3.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_96083.log 278710 Log file, useful mostly for debugging
Coll_96084.log 288545 Log file, useful mostly for debugging
Tune-9608-RoundReelOfEight3.abc 909 ABC music file with the extracted tune(s)
Tune-9608-RoundReelOfEight3.ps 37628 PostScript
Tune-9608-RoundReelOfEight3.txt 909 Plain-text file with the extracted tune(s)
Tune-9608-get.log 4980 Log file, useful mostly for debugging
Tune-96081-get.log 3526 Log file, useful mostly for debugging
These files should be available for 24 hours.