The collaborative nature of jazz makes the idea of super groups almost commonplace. So, when a group comes along with such a distinct identity and history, it is always worth a close listen. Dave Holland stands among the giants of jazz bass, having worked with everyone from Miles Davis to Roy Haynes. Chris Potter is a saxophonist whose powerful playing is matched only by his progressive spirit. Kevin Eubanks spins funky, far-reaching guitar lines. And Eric Harland is a globetrotting rhythmic superpower, innovating with taste and precision.