pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-65289-w.ps) >>/Users/jc/w/tmp/Tune-65289-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/terra.es/personal8/niltoni/w.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_65289.log 129497 Log file, useful mostly for debugging
Tune-65289-get.log 139846 Log file, useful mostly for debugging
Tune-65289-w.abc 385 ABC music file with the extracted tune(s)
Tune-65289-w.ps 33085 PostScript
Tune-65289-w.txt 385 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.