pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-79456-MountHills_PLFD1701_456.ps) >>/Users/jc/w/tmp/Tune-79456-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/MountHills_PLFD1701_456.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_79456.log 458410 Log file, useful mostly for debugging
Tune-79456-MountHills_PLFD1701_456.abc 380 ABC music file with the extracted tune(s)
Tune-79456-MountHills_PLFD1701_456.ps 34564 PostScript
Tune-79456-MountHills_PLFD1701_456.txt 380 Plain-text file with the extracted tune(s)
Tune-79456-get.log 8065 Log file, useful mostly for debugging
These files should be available for 24 hours.