Mismatch: X:10726 doesn't match requested X:10783
Mismatch: X:10784 doesn't match requested X:10783
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-49171-m.ps) >>/Users/jc/w/tmp/Tune-49171-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/terra.es/personal8/niltoni/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-49171-get.log 339146 Log file, useful mostly for debugging
Tune-49171-m.abc 423 ABC music file with the extracted tune(s)
Tune-49171-m.ps 35816 PostScript
Tune-49171-m.txt 423 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.