This weekend, Gent Treadly will expand to a quartet with the addition of Bill McKay on keys. McKay (Leftover Salmon, Derek Trucks) will appear with the band at The Roadhouse in Rye, NY this evening and at Bennepalooza in Purchase, NY on Saturday. Last October, Gent Treadly guitarist Mike Jaimes passed away and David Berg has since joined bassist Greg Koerner and drummer Tom Kaelin in the group, which first came together in 1994.