The Berkshire-based Greystone Quartet is a group of seasoned musicians that play captivating original jazz compositions and lesser-known chestnuts from the Great American Songbook, in the tradition of the classic quartets from the heyday of Jazz.The quartet’s members are Don Mikkelsen (trombone), Andy Wrba (bass), Benny Kohn (piano), and Conor Meehan (drums).