pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-78084-471_Black_and_Grey.ps) >>/Users/jc/w/tmp/Tune-78084-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/BotCDaSS/471_Black_and_Grey.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_78084.log 1446 Log file, useful mostly for debugging
Tune-78084-471_Black_and_Grey.abc 736 ABC music file with the extracted tune(s)
Tune-78084-471_Black_and_Grey.ps 33624 PostScript
Tune-78084-471_Black_and_Grey.txt 736 Plain-text file with the extracted tune(s)
Tune-78084-get.log 4625 Log file, useful mostly for debugging
These files should be available for 24 hours.