pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-87985-GreenMountainPetronellaR.ps) >>/Users/jc/w/tmp/Tune-87985-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/terrytraub.org/GreenMountainPetronellaR.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
Coll_87985.log 142711 Log file, useful mostly for debugging
Tune-87985-GreenMountainPetronellaR.abc 401 ABC music file with the extracted tune(s)
Tune-87985-GreenMountainPetronellaR.ps 34794 PostScript
Tune-87985-GreenMountainPetronellaR.txt 401 Plain-text file with the extracted tune(s)
Tune-87985-get.log 4756 Log file, useful mostly for debugging
These files should be available for 24 hours.