pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-78696-12_JohnRaymond.ps) >>/Users/jc/w/tmp/Tune-78696-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Pat_ShawsPinewoods/12_JohnRaymond.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_78696.log 800 Log file, useful mostly for debugging
Tune-78696-12_JohnRaymond.abc 682 ABC music file with the extracted tune(s)
Tune-78696-12_JohnRaymond.ps 34974 PostScript
Tune-78696-12_JohnRaymond.txt 682 Plain-text file with the extracted tune(s)
Tune-78696-get.log 4612 Log file, useful mostly for debugging
These files should be available for 24 hours.