Due to Chris Wood’s ongoing recovery from an unexpected surgery, this weekend’s Hangtown Music Festival will tweak its lineup slightly to reflect Wood’s absence.

Among the changes, Dirty Dozen Brass Band’s Kirk Joseph and Will Bernard will join John Medeski and Billy Martin to form a group dubbed Medeski, Martin & Mad Skillet, taken from Medeski’s project of the same name.

In addition, Oliver Wood and Jano Rix of The Wood Brothers will welcome Ric Robertson of The Rondo Rigs on bass for a set full of Wood Brothers tunes as well as appearances from special guests like Nicki Bluhm, Joe Craven, Tim Carbone and members of The Infamous Stringdusters.

Hangtown Music Festival kicks off October 20 in Placerville, CA.