Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/session/polka/Ševcovský-C,D-32-3.abc"
X:2 not found in http://john-chambers.us/~jc/music/session/polka/Ševcovský-C,D-32-3.abc

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 ]
filesizedescription
Coll_91767.log 66344 Log file, useful mostly for debugging
Tune-91767-get.log 3268 Log file, useful mostly for debugging
Tune-91767-polka.abc 0 ABC music file with the extracted tune(s)
Tune-91767-polka.txt 0 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.