Who sang the station sign off song - dixie for ksla tv in shreveport during where can i get a copy?

Who originally sang the song “Dixie” used as a station sign-off song for television station KSLA in Shreveport, LA?

Daniel Decatur Emmett

Where can I get a copy of the song “Dixie”?

The song "Dixie" is in the public domain and can be found online at various sites, including YouTube.