Carbon Choir (due at the Larimer Lounge on Friday, December 5) is a band whose virtues compound with each song. At first you might be drawn in by the music's delicate atmospherics and expertly measured pacing, because the band's sound is definitely made for reflective moments and thoughtful observation. But those who dismiss this act as just another Radiohead-influenced atmospheric indie band with piano should give it more than a cursory listen. Its jazz rhythms and tonal choices reveal a group that takes great care to execute evocative moments, employing emotion and superior technique in a refreshing fusion of brain and heart. The admirably diverse material also makes it obvious that these guys are drawing from a broad sonic palette. Many bands strive for soaring ethereal beauty, but few have melodies as rock-solid as Carbon Choir.