pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-88136-2031_Lord_Aboyne.ps) >>/Users/jc/w/tmp/Tune-88136-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR12/2031_Lord_Aboyne.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-88136-2031_Lord_Aboyne.abc 841 ABC music file with the extracted tune(s)
Tune-88136-2031_Lord_Aboyne.ps 36876 PostScript
Tune-88136-2031_Lord_Aboyne.txt 841 Plain-text file with the extracted tune(s)
Tune-88136-get.log 4579 Log file, useful mostly for debugging
These files should be available for 24 hours.