Mismatch: X:6372 doesn't match requested X:6373
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4797-g.ps) >>/Users/jc/w/tmp/Tune-4797-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/terra.es/personal8/niltoni/g.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
Find_4797.log 1446 Log file, useful mostly for debugging
Tune-4797-g.abc 410 ABC music file with the extracted tune(s)
Tune-4797-g.ps 33875 PostScript
Tune-4797-g.txt 410 Plain-text file with the extracted tune(s)
Tune-4797-get.log 212097 Log file, useful mostly for debugging
Tune-47970-get.log 6143 Log file, useful mostly for debugging
These files should be available for 24 hours.