pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6315-Kohlers.ps) >>/Users/jc/w/tmp/Tune-6315-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kohlers/Kohlers.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_63153.log 0 Log file, useful mostly for debugging
Tune-6315-Kohlers.abc 530 ABC music file with the extracted tune(s)
Tune-6315-Kohlers.ps 38144 PostScript
Tune-6315-Kohlers.txt 530 Plain-text file with the extracted tune(s)
Tune-6315-get.log 4268 Log file, useful mostly for debugging
Tune-63152-get.log 0 Log file, useful mostly for debugging
Tune-63154-get.log 0 Log file, useful mostly for debugging
These files should be available for 24 hours.