WindSync, an ensemble of wind musicians, will showcase its unique approach to classical music Sunday at Tiverton’s Meeting House. Back by popular demand, the quintet combines the sounds of flute, oboe, clarinet, bassoon and French horn in a way that Houston Public Radio describes as “innovative, unconventional and exciting.” Known for their energetic performances of classical music, the group was a finalist in the 2009 Astral Artist Competition in Philadelphia and Artist in Residence for The Music Bus Tour in 2010. Recently, WindSync was named a 2012 artist in residence at Newark Academy in New Jersey.