pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-50236-2181_the_Braes_of_Athol.ps) >>/Users/jc/w/tmp/Tune-50236-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR/2181_the_Braes_of_Athol.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_50236.log 1350481 Log file, useful mostly for debugging
Tune-50236-2181_the_Braes_of_Athol.abc 1015 ABC music file with the extracted tune(s)
Tune-50236-2181_the_Braes_of_Athol.ps 41199 PostScript
Tune-50236-2181_the_Braes_of_Athol.txt 1015 Plain-text file with the extracted tune(s)
Tune-50236-get.log 4831 Log file, useful mostly for debugging
These files should be available for 24 hours.