pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1305-m.ps) >>/Users/jc/w/tmp/Tune-1305-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/atrilcoral.com/m.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_13050.log 144017 Log file, useful mostly for debugging
Form_13050.log 852 Log file, useful mostly for debugging
Form_13054.log 850 Log file, useful mostly for debugging
Tune-1305-get.log 4094 Log file, useful mostly for debugging
Tune-1305-m.abc 0 ABC music file with the extracted tune(s)
Tune-1305-m.ps 0 PostScript
Tune-1305-m.txt 0 Plain-text file with the extracted tune(s)
Tune-13051-get.log 4041 Log file, useful mostly for debugging
Tune-13055-get.log 3122 Log file, useful mostly for debugging
Tune-13057-get.log 5425 Log file, useful mostly for debugging
These files should be available for 24 hours.