pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-46185-30181_Democratic_March.ps) >>/Users/jc/w/tmp/Tune-46185-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30181_Democratic_March.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-46185-30181_Democratic_March.abc 1336 ABC music file with the extracted tune(s)
Tune-46185-30181_Democratic_March.ps 40817 PostScript
Tune-46185-30181_Democratic_March.txt 1336 Plain-text file with the extracted tune(s)
Tune-46185-get.log 4891 Log file, useful mostly for debugging
These files should be available for 24 hours.