pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-56220-Witches.ps) >>/Users/jc/w/tmp/Tune-56220-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JohnWalsh/Witches.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_56220.log 292761 Log file, useful mostly for debugging
Tune-56220-Witches.abc 1352 ABC music file with the extracted tune(s)
Tune-56220-Witches.ps 33906 PostScript
Tune-56220-Witches.txt 1352 Plain-text file with the extracted tune(s)
Tune-56220-get.log 4610 Log file, useful mostly for debugging
These files should be available for 24 hours.