pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-39698-winterbourndownbordermorris.ps) >>/Users/jc/w/tmp/Tune-39698-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/winterbourndownbordermorris.co.uk/%18:CRAVENSSTOMP.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-39698-get.log 5353 Log file, useful mostly for debugging
Tune-39698-winterbourndownbordermorris.abc 358 ABC music file with the extracted tune(s)
Tune-39698-winterbourndownbordermorris.ps 33686 PostScript
Tune-39698-winterbourndownbordermorris.txt 358 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.