pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-87191-10091_MARQUIS_OF_LORNE.ps) >>/Users/jc/w/tmp/Tune-87191-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kohlers/10091_MARQUIS_OF_LORNE.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_87191.log 728 Log file, useful mostly for debugging
Tune-87191-10091_MARQUIS_OF_LORNE.abc 488 ABC music file with the extracted tune(s)
Tune-87191-10091_MARQUIS_OF_LORNE.ps 38102 PostScript
Tune-87191-10091_MARQUIS_OF_LORNE.txt 488 Plain-text file with the extracted tune(s)
Tune-87191-get.log 4564 Log file, useful mostly for debugging
These files should be available for 24 hours.