I was never a fan of viola jokes. Just because the instrument is neither one thing nor the other doesn’t make it any funnier than a mezzo-soprano or a bass-baritone. It is what it is, with benefits. The viola spares you squeaky irritations of a violin and lugubrious growls of a mishandled cello. I like the viola. There, I’ve said it. What’s special about this release is the eclectic menu assembled by a young Jamaican-American, Jordan Bak, who is clearly going places. Bak opens with a three-minute Chant by Jonathan Harvey, dinking back and forth between tonal and post-tonal contemplation.…