pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-77944-ThornhillStrathspey.ps) >>/Users/jc/w/tmp/Tune-77944-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/ThornhillStrathspey.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-77944-ThornhillStrathspey.abc 1765 ABC music file with the extracted tune(s)
Tune-77944-ThornhillStrathspey.ps 51905 PostScript
Tune-77944-ThornhillStrathspey.txt 1765 Plain-text file with the extracted tune(s)
Tune-77944-get.log 5080 Log file, useful mostly for debugging
These files should be available for 24 hours.