pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-72189-3361_John_Andersons_Auldest_Daughter.ps) >>/Users/jc/w/tmp/Tune-72189-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CSR/3361_John_Andersons_Auldest_Daughter.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-72189-3361_John_Andersons_Auldest_Daughter.abc 913 ABC music file with the extracted tune(s)
Tune-72189-3361_John_Andersons_Auldest_Daughter.ps 37912 PostScript
Tune-72189-3361_John_Andersons_Auldest_Daughter.txt 913 Plain-text file with the extracted tune(s)
Tune-72189-get.log 8589 Log file, useful mostly for debugging
These files should be available for 24 hours.