pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-66994-ShoulderToShoulder.ps) >>/Users/jc/w/tmp/Tune-66994-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/ShoulderToShoulder.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-66994-ShoulderToShoulder.abc 1299 ABC music file with the extracted tune(s)
Tune-66994-ShoulderToShoulder.ps 43433 PostScript
Tune-66994-ShoulderToShoulder.txt 1299 Plain-text file with the extracted tune(s)
Tune-66994-get.log 5045 Log file, useful mostly for debugging
These files should be available for 24 hours.