The promise of indie rock is a wide-eyed feeling of watching the sun come up drunk, next to someone you’ve been hoping to talk to all night. It’s the promise of summer. Whitney, on their debut Light Upon the Lake, cashes in on this promise with 10 cuts of big-hearted and beautifully arranged rock for softies. Guitarist Max Kakacek, formerly of Smith Westerns, proves that he was the true star of his old outfit; his big-ass, T-Rex sound and careful plucking lends the band an impressive dynamic range. Drummer and singer Julien Ehrlich, formerly of Unknown Mortal Orchestra, proves that anyone who’s spent a tour of duty in that band is preternaturally gifted.