pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-49688-MissMargaretHill1.ps) >>/Users/jc/w/tmp/Tune-49688-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/MissMargaretHill1.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-49688-MissMargaretHill1.abc 1893 ABC music file with the extracted tune(s)
Tune-49688-MissMargaretHill1.ps 43924 PostScript
Tune-49688-MissMargaretHill1.txt 1893 Plain-text file with the extracted tune(s)
Tune-49688-get.log 6417 Log file, useful mostly for debugging
These files should be available for 24 hours.