There are two opportunities close to Oxford to see Topette:

Sat 6th June - Weedon Bec Village Hall, Northamptonshire - wegottickets.com/event/685742
Sun 14th June - Uffington Village Hall , Oxfordshire - wegottickets.com/event/685760

Don't like driving at night, or its too cold and wet in January and February then watch these concerts from the comfort of your own home.

Sat  10 Jan - Oaken
Sun 18 Jan - Colum Sands
Sun 25 Jan - Lucy and Hazel (With introduction from Emily Portman)
Tue 27 Jan - Nancy Kerr and James Fagan
Thu 12 Feb - John Kirkpatrick: 200 years of the Squeezebox
Fri   20 Feb - Pagoda Project
Sun 22 Feb - Bob Fox
Thu 26 Feb - Mikey Kenney