Mismatch: X:12295 doesn't match requested X:12296
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1607-n-o.ps) >>/Users/jc/w/tmp/Tune-1607-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/terra.es/personal8/niltoni/n-o.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_16071.log 146437 Log file, useful mostly for debugging
Coll_16076.log 142202 Log file, useful mostly for debugging
Tune-1607-get.log 189575 Log file, useful mostly for debugging
Tune-1607-n-o.abc 351 ABC music file with the extracted tune(s)
Tune-1607-n-o.ps 33546 PostScript
Tune-1607-n-o.txt 351 Plain-text file with the extracted tune(s)
Tune-16074-get.log 1389 Log file, useful mostly for debugging
Tune-16076-get.log 4235 Log file, useful mostly for debugging
These files should be available for 24 hours.