pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-52704-messer.ps) >>/Users/jc/w/tmp/Tune-52704-get.log 2>&1" returned status 256
http://www.alfwarnock.info/alfs/abc/messer.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-52704-get.log 4144 Log file, useful mostly for debugging
Tune-52704-messer.abc 356 ABC music file with the extracted tune(s)
Tune-52704-messer.ps 37803 PostScript
Tune-52704-messer.txt 356 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.