Janus Jazz Quartet on Sunday, December 3rd (with a guest appearance by singer Christine Williams): Steve Davidson (saxophone), Thor Polson (piano), Theresa McCoy (drums), and Dave Miller (bass) will perform originals as well as jazz masterpieces that don’t normally receive the attention that they so richly deserve.  The concert will take place at 4:00 p.m. at La Baguette Music Café (address: 340 A Street in Ashland).  Admission is $25, and reservations can be made by calling 541-482-0855.