Mismatch: X:7727 doesn't match requested X:7726
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-70480-i-j.ps) >>/Users/jc/w/tmp/Tune-70480-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/terra.es/personal8/niltoni/i-j.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-70480-get.log 188826 Log file, useful mostly for debugging
Tune-70480-i-j.abc 635 ABC music file with the extracted tune(s)
Tune-70480-i-j.ps 39855 PostScript
Tune-70480-i-j.txt 635 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.