pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1937-s.ps) >>/Users/jc/w/tmp/Tune-1937-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/atrilcoral.com/s.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_19374.log 1097821 Log file, useful mostly for debugging
Form_19374.log 836 Log file, useful mostly for debugging
Tune-1937-get.log 4138 Log file, useful mostly for debugging
Tune-1937-s.abc 356 ABC music file with the extracted tune(s)
Tune-1937-s.ps 34241 PostScript
Tune-1937-s.txt 356 Plain-text file with the extracted tune(s)
Tune-19370-get.log 1462 Log file, useful mostly for debugging
Tune-19371-get.log 6323 Log file, useful mostly for debugging
Tune-19378-get.log 4381 Log file, useful mostly for debugging
These files should be available for 24 hours.