pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6474-Mopsi_Don_Mopsis_Tune.ps) >>/Users/jc/w/tmp/Tune-6474-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/mochpryderi.com/Mopsi_Don_Mopsis_Tune.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
Form_64745.log 749 Log file, useful mostly for debugging
Form_64749.log 763 Log file, useful mostly for debugging
Tune-6474-Mopsi_Don_Mopsis_Tune.abc 279 ABC music file with the extracted tune(s)
Tune-6474-Mopsi_Don_Mopsis_Tune.ps 34258 PostScript
Tune-6474-Mopsi_Don_Mopsis_Tune.txt 279 Plain-text file with the extracted tune(s)
Tune-6474-get.log 4568 Log file, useful mostly for debugging
These files should be available for 24 hours.