GHS Jazz Ensemble entertains

Greenwich High School Band Director John Yoon during a performance by his band, the Greenwich High School Jazz Ensemble, at Glenville School, Thursday night, March 14, 2013.

A performance by the Greenwich High School Jazz Ensemble at Glenville School, Thursday night, March 14, 2013.

At right, senior Alex Chou, 17, plays alto saxophone during a performance by the Greenwich High School Jazz Ensemble at Glenville School, Thursday night, March 14, 2013.

Bob Luckey