pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-12695-482-Professor_Blackie.ps) >>/Users/jc/w/tmp/Tune-12695-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JamesScottSkinner/The_Scottish_Violinist/482-Professor_Blackie.abc1.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-12695-482-Professor_Blackie.abc 1477 ABC music file with the extracted tune(s)
Tune-12695-482-Professor_Blackie.ps 50924 PostScript
Tune-12695-482-Professor_Blackie.txt 1477 Plain-text file with the extracted tune(s)
Tune-12695-get.log 14952 Log file, useful mostly for debugging
These files should be available for 24 hours.