Cervantes’ Grass For That Ass – WhiteWater Ramble is “Pickin’ on Paul Simon” Allison CohnMarch 5, 2015 If you're a local bluegrass aficionado, you are probably already well aware of Cervantes' weekly "Grass for that Ass" Thursday night parties, featuring WhiteWat... ConcertsDenver MusicMusicNightlife1 min read