pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-99738-Kohlers.ps) >>/Users/jc/w/tmp/Tune-99738-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
Form_99738.log 741 Log file, useful mostly for debugging
Tune-99738-Kohlers.abc 417 ABC music file with the extracted tune(s)
Tune-99738-Kohlers.ps 35808 PostScript
Tune-99738-Kohlers.txt 417 Plain-text file with the extracted tune(s)
Tune-99738-get.log 4124 Log file, useful mostly for debugging
These files should be available for 24 hours.