pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-81352-3134.ps) >>/Users/jc/w/tmp/Tune-81352-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR12/3134=Kindness_for_ever_Mair.abc2.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-81352-3134.abc 1020 ABC music file with the extracted tune(s)
Tune-81352-3134.ps 39351 PostScript
Tune-81352-3134.txt 1020 Plain-text file with the extracted tune(s)
Tune-81352-get.log 4771 Log file, useful mostly for debugging
These files should be available for 24 hours.