pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9755-h.ps) >>/Users/jc/w/tmp/Tune-9755-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/atrilcoral.com/h.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-9755-get.log 4218 Log file, useful mostly for debugging
Tune-9755-h.abc 318 ABC music file with the extracted tune(s)
Tune-9755-h.ps 33627 PostScript
Tune-9755-h.txt 318 Plain-text file with the extracted tune(s)
Tune-97553-get.log 3108 Log file, useful mostly for debugging
Tune-97554-get.log 3471 Log file, useful mostly for debugging
Tune-97559-get.log 9046 Log file, useful mostly for debugging
These files should be available for 24 hours.