pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-81379-122_the_Fox.ps) >>/Users/jc/w/tmp/Tune-81379-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1798/Bland_Weller/122_the_Fox.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-81379-122_the_Fox.abc 756 ABC music file with the extracted tune(s)
Tune-81379-122_the_Fox.ps 34429 PostScript
Tune-81379-122_the_Fox.txt 756 Plain-text file with the extracted tune(s)
Tune-81379-get.log 4570 Log file, useful mostly for debugging
These files should be available for 24 hours.