pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-44640-018_Queens_Palace.ps) >>/Users/jc/w/tmp/Tune-44640-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Straight_Skillern/018_Queens_Palace.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_44640.log 1006 Log file, useful mostly for debugging
Tune-44640-018_Queens_Palace.abc 798 ABC music file with the extracted tune(s)
Tune-44640-018_Queens_Palace.ps 33271 PostScript
Tune-44640-018_Queens_Palace.txt 798 Plain-text file with the extracted tune(s)
Tune-44640-get.log 4686 Log file, useful mostly for debugging
These files should be available for 24 hours.