pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-77505-SpeyInSpate.ps) >>/Users/jc/w/tmp/Tune-77505-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/contrib/Tunes/SpeyInSpate.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-77505-SpeyInSpate.abc 957 ABC music file with the extracted tune(s)
Tune-77505-SpeyInSpate.ps 41766 PostScript
Tune-77505-SpeyInSpate.txt 957 Plain-text file with the extracted tune(s)
Tune-77505-get.log 4893 Log file, useful mostly for debugging
These files should be available for 24 hours.