pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-84273-r.ps) >>/Users/jc/w/tmp/Tune-84273-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/terra.es/personal8/niltoni/r.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_84273.log 1697 Log file, useful mostly for debugging
Tune-84273-get.log 4247 Log file, useful mostly for debugging
Tune-84273-r.abc 182 ABC music file with the extracted tune(s)
Tune-84273-r.ps 33636 PostScript
Tune-84273-r.txt 182 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.