SAN FRANCISCO, March 14, 2018 /PRNewswire/ -- StubHub, the world's largest event marketplace, announced today a three-year commitment to put over $3MM in instruments into at-risk public school music programs across the country, in partnership with the Mr. Holland's Opus Foundation (MHOF).  The commitment is made possible by a grant from the StubHub Foundation, a corporate-advised fund of Silicon Valley Community Foundation, that extends the existing four-year partnership with the Mr. Holland's Opus Foundation.