This Dutch vocal a cappella quartet spans genres with its unique blend of tunes and original arrangements. Just listing some of the seventeen tunes covered gives a sense of the group's breadth: Rodgers and Hammerstein's "My Favorite Things," George Clinton's "Give up the Funk (Tear the Roof off the Sucker)," Leonard Bernstein's "West Side Story: Prologue," and Ashford and Simpson's "Ain't No Mountain High Enough." Along the way, there are some attractive original arrangements by the group. The closest comparison may be the Singers Unlimited, although the Oom Maw Maw is not quite as convincing. Mixing jazz, rock, and folk music, it is unclear to whom this music will appeal. The jazz improvisational element is minimal; yet there is a clear jazz feel to the whole. A very difficult project, the quartet is a well-rehearsed unit whose intonation never fails. Its slick side may alienate some listeners, though there are some charming moments throughout.