Commentators often single out Roy Harris’s Symphony No. 3 (1939) as the quintessential American symphony. According to the conductor James Van Horn—author of The Community Orchestra: A Handbook for Conductors, Managers, and Boards (1979), the bible in its field—Harris’s technical and interpretive demands fall well within the capacities of such forces. It follows that for Sir Simon Rattle and the dreadnought London Symphony Orchestra, it will be a piece of cake, hopefully tasty to the British palate. Frenzy, a world premiere by John Adams, may be expected to give them a more exacting workout. For the rest, expect fascinatin’ rhythm and melody galore from the one and only George Gershwin. The fleet-fingered Kirill Gerstein is heard in the crowd-pleasing Piano Concerto in F. For starters and to close, there are the overtures to Let ’em Eat Cake and Strike Up the Band. —Matthew Gurewitsch