Photos: Playing Big Bill Broonzy’s guitar at Old Town

Musician Dave Alvin (pictured) and his brother Phil stopped at the Old Town School of Folk Music Tuesday April 15, 2014 to handle and play a guitar that belonged to blues singer, songwriter and guitarist Big Bill Broonzy.   (Phil Velasquez / Chicago Tribune)

Musicians Dave (left) and Phil Alvin stopped at the Old Town School of Folk Music Tuesday April 15, 2014 to handle and play a guitar that belonged to blues singer, songwriter and guitarist Big Bill Broonzy.   (Phil Velasquez / Chicago Tribune)

Musician Dave Alvin (pictured) and his brother Phil stopped at the Old Town School of Folk Music Tuesday April 15, 2014 to handle and play a guitar by blues singer, songwriter and guitarist Big Bill Broonzy.  (Phil Velasquez / Chicago Tribune)

Musician Phil Alvin (pictured) and his brother Dave (not pictured) stopped at the Old Town School of Folk Music Tuesday April 15, 2014 to handle and play a guitar by blues singer, songwriter and guitarist Big Bill Broonzy.   (Phil Velasquez / Chicago Tribune)

Musicians Dave (left) and Phil Alvin stopped at the Old Town School of Folk Music Tuesday April 15, 2014 to handle and play a guitar by blues singer, songwriter and guitarist Big Bill Broonzy.   (Phil Velasquez / Chicago Tribune)

Musicians Dave (left) and Phil Alvin stopped at the Old Town School of Folk Music Tuesday April 15, 2014 to handle and play a guitar by blues singer, songwriter and guitarist Big Bill Broonzy.   (Phil Velasquez / Chicago Tribune)

Musicians Dave (left) and Phil Alvin stopped at the Old Town School of Folk Music Tuesday April 15, 2014 to handle and play a guitar by blues singer, songwriter and guitarist Big Bill Broonzy.   (Phil Velasquez / Chicago Tribune)