You're probably thinking of the witch doctor life.
And no offense, but we have a search engine on this board with plenty of threads about Beefheart (linked below). Also, how did you manage to get Brown Star Sessions as the first album you heard by Beefheart -- not that many people even know about that album to begin with! Pretty funny. Anyway, it was never released; it's almost exclusively instrumental outtakes and demos from Clear Spot, and, um, jams. Trying to explain the appeal of Beefheart with your only reference being that album is going to be difficult. You just have to hear -- endlessly creative, clean, completely disciplined yet free-sounding, beautiful music. Some of the most complex compositions ever written... just amazing music. I dunno. I could gush... but... okay, one of (if not THE) the greatest musicians of our generation, the most important musical influence in my life, and someone whose records I've completely worn out but still listen to weekly. A music god.
The most accessible albums (while still being really GREAT) are Safe As Milk and Doc at the Radar Station. My favorites are Ice Cream for Crow and Lick My Decals Off Baby. The classic, of course, is Trout Mask Replica, but it's not one of my favorites -- it's obviously his most important one of the most important albums ever made, but it just doesn't have as many of my favorite songs on it. To an extent, you can't really go wrong with any of the officially-released albums except for Bluejeans and Moonbeams and Unconditionally Guranteed.
http://www.sonicyouth.com/gossip/showthread.php?t=892 captain beefheart appreciation thread
http://www.sonicyouth.com/gossip/showthread.php?t=12233 captain beefheart poll
http://www.sonicyouth.com/gossip/showthread.php?t=13645 captain beefheart reccomendations
http://www.sonicyouth.com/gossip/showthread.php?t=18041 ranking captain beefheart albums in order
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