This year’s OSMose at the Maison Symphonique featured a program of excerpts from 13 well-known pieces, most notably Edvard Grieg’s ‘Morning Mood’ from Peer Gynt, “Hedwig’s Theme” from John Williams’ iconic Harry Potter score, Nikolai Rimsky-Korsakov’s Flight of the Bumblebee, and Ludwig van Beethoven’s Ode to Joy.