pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-26034-8036_Walton_Bridge.ps) >>/Users/jc/w/tmp/Tune-26034-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JohnJohnson/8036_Walton_Bridge.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_26034.log 263256 Log file, useful mostly for debugging
Tune-26034-8036_Walton_Bridge.abc 372 ABC music file with the extracted tune(s)
Tune-26034-8036_Walton_Bridge.ps 33746 PostScript
Tune-26034-8036_Walton_Bridge.txt 372 Plain-text file with the extracted tune(s)
Tune-26034-get.log 4682 Log file, useful mostly for debugging
These files should be available for 24 hours.