The Nashville Songwriters Association International will buy the famed Bluebird Café in Nashville to use as a songwriters venue, a source at the NSAI has confirmed. Details of the agreement are to be announced next week. Founded 25 years ago by impresario Amy Kurland, the club has hosted performances by virtually every major songwriter in Nashville. It has also attracted music publishers and record label executives in search of fresh talent. Capitol Records executives signed Garth Brooks after catching one of his Bluebird shows. So renowned has the tiny venue become that it was an inspiration for The Thing Called Love, a 1993 film starring River Phoenix and Sandra Bullock, in which singer K.T. Oslin played the club owner.