pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-73507-Big_Don_MacDonald_2.ps) >>/Users/jc/w/tmp/Tune-73507-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/corneymusers/Big_Don_MacDonald_2.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_73507.log 271839 Log file, useful mostly for debugging
Tune-73507-Big_Don_MacDonald_2.abc 894 ABC music file with the extracted tune(s)
Tune-73507-Big_Don_MacDonald_2.ps 43613 PostScript
Tune-73507-Big_Don_MacDonald_2.txt 894 Plain-text file with the extracted tune(s)
Tune-73507-get.log 4553 Log file, useful mostly for debugging
These files should be available for 24 hours.