News Commencement 2011: HGSE Harmonicas Posted May 26, 2011 By News editor The HGSE a capella group, The HGSE Harmonicas, perform during the 2011 Commencement ceremonies. News The latest research, perspectives, and highlights from the Harvard Graduate School of Education Explore All Articles Related Articles News Convocation 2016 Speaker Announced News Commencement by the Numbers News Convocation 2011: Faculty Speaker Address