Captain Beefheart died yesterday on the 17th of December 2010. He died at a Northern California Hospital of complications from multiple sclerosis.
His most well-known and influential album is "Trout Mask Replica" from 1969 recorded with his group "The Magic Band". It is a masterpiece of psychedelic rock with a lot of blues and free-form aspects. He was a formative figure for experimental rock music and well respected by the famous Frank Zappa. Rest in peace Captain.