The lineup for this year's Big Ears in Knoxville, Tennessee has been expanded with the addition of a number of alternative sets from members of Wilco who will also headline the festival.

Frontman Jeff Tweedy will play an improvisational set with Chikamorachi drummer Chris Corsano and bassist Darin Gray. Gray will also perform with Wilco's Glenn Kotche in the On Fillmore project's set. Tweedy's teaming up with Chikamorachi will mark one of the first ever collaborations between them ever. Wilco keyboardist Mikael Jorgensen will too team up with art historian James Merle Thomas to present their Quindar project, which promises to take in ambient and experimental electronic music with film accompaniments from the archives of NASA and the Smithsonian Institution.

Also newly announced are The Knoxville Symphony Orchestra in a special Sunday performance under the direction of Aram Demirjian. They will perform music by Bach, John Adams and Matt Aucoin as part of the show. Arcade Fire's Jeremy Gara is set to play a special, solo improvised set, while there are also appearances scheduled from pianist Matthew Shipp and drummer Bobby Kapp.

Xylouris White will bring their combination of lute and drums to the festival too, while T. Griffin, and his band The Quavers, also join the lineup.

tQ is very happy to partner with the festival for their 2017 edition with Deerhoof, Oliver Coates, Xiu Xiu, Tortoise, Junun, Matmos and many more already previously announced. The festival takes place from March 23-26 in Knoxville, Tennessee. To check the full line-up as it stands and get tickets, click here.