pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-10406-k.ps) >>/Users/jc/w/tmp/Tune-10406-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/atrilcoral.com/k.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
Form_10406.log 765 Log file, useful mostly for debugging
Tune-10406-get.log 12274 Log file, useful mostly for debugging
Tune-10406-k.abc 0 ABC music file with the extracted tune(s)
Tune-10406-k.ps 0 PostScript
These files should be available for 24 hours.