Music stores used to be magical places offering wide variety. Today the three largest music retailers are Best Buy, Wal-Mart and Target. In those stores shelf space is limited, making it harder for new artists to emerge. Even established artists are troubled by stores using music as a loss leader. Smaller, more personalized record stores are closing all over the country -- some because of rampant P2P piracy but many others because of competition from department stores that traditionally have no connection whatsoever with artists.