On his first solo album, Total Blue member Anthony Calonico continues to mine the Los Angeles instrumental trio’s refined, streamlined take on chilled-out lite jazz and pop ambience. But he also makes some moves, singing on several tracks with a slightly murmurous, no-big-deal felicity. As an exploration of introspective grooves and buttery inner-ear tones, Spacious Heart unsurprisingly delivers; as a subtle reinvention of the once-maligned adult contemporary genre, it may have something new up its sleeve.