Season 2015 around the corner and I hear an instrument on the roof

Is it a plane, a drum, a bird, a violin, a banjo, an oboe.....well it opens 
Season 2015 at The Barn and it makes a sweet sound across the meadow and it sounds like a violin or maybe a viola.  What instrument is it and what musical is named after its player? Members will hear first next week when their Season Preview arrives.  Are you a Member?  Join the Westben Membership team and be part of what keeps great music flowing in this part of the world.http://www.westben.ca/get-involved/membership

Any guesses on what the musical is called?