"(Back Home Again in) Indiana" is a song composed by Ballard MacDonald and James F. Hanley, first published in January 1917. While it is not the official state song of the U.S. state of Indiana ("On the Banks of the Wabash"), it is perhaps the best-known song that pays tribute to the Hoosier State.
The tune was introduced as a Tin Pan Alley pop-song of the time. It contains a musical quotation from the already well known "On the Banks of the Wabash, Far Away", as well as repetition of some key words and phrases from the lyrics of the latter: moonlight, candlelight, fields, new-mown hay, sycamores, and of course the Wabash River.
In 1934, Joe Young, Jean Schwartz, and Joe Ager wrote "In a Little Red Barn (on a Farm down in Indiana)", which not only incorporated all the same key words and phrases above, but whose chorus had the same harmonic structure as "Indiana". In this respect it was a contrafact of the latter (see "A jazz standard" below).
In 1917 it was one of the current pop tunes selected by Columbia Records to be recorded by the Original Dixieland Jazz Band, who released it as a Columbia 78, A2297, backed with "Darktown Strutters' Ball". This lively instrumental version by the ODJB was one of the earliest jazz records issued and sold well. The tune became a jazz standard. For years, Louis Armstrong and his All Stars would open each public performance with the number.
Its chord changes undergird the Miles Davis Bebop composition "Donna Lee", one of jazz's best known contrafacts (a composition that overlays a new melody over an existing harmonic structure). Other lesser known contrafacts of Indiana include Fats Navarro's "Ice Freezes Red" and Lennie Tristano's "Ju-Ju".