Mismatch: X:10771 doesn't match requested X:10772
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-91100-m.ps) >>/Users/jc/w/tmp/Tune-91100-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
Tune-91100-get.log 343388 Log file, useful mostly for debugging
Tune-91100-m.abc 337 ABC music file with the extracted tune(s)
Tune-91100-m.ps 34753 PostScript
Tune-91100-m.txt 337 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.