Seeing as it was being discontinued, I snagged a new copy of Burning Monkey Solitaire 4

My son installed it on his iMac (running Snow Leopard) and we noticed that there doesn't appear to be any music. Did v4 drop the music? v3 had (great) music, so we're not sure if something is wrong. But we don't see a music volume setting in the preferences, so we're guessing this was deliberate. Anyone confirm?