Jeremiah Fraites, co-founder of “The Lumineers”, charts new territory with his second release, Piano Piano 2. It’s not a companion piece to Piano Piano as much as an outright evolution. If Fraites’ debut album was sparse and minimalist, then Piano Piano 2 is expansive and adventurous, pairing his piano with layers of percussion, acoustic guitar, strings, spoken-word snippets, and bubbling synths.