Native Memphian William Eggleston, 77, is widely regarded to be the most important photographer of the late 20th Century, but there is another side to him that took root in his Sumner, Mississippi childhood, where he discovered the piano in the parlor that ignited in him a lifelong passion for music. The music, which he refers to as "Musik", adopting the German spelling of his hero, JS Bach, is highly emotional, whether he's improvising a Bach-like organ fanfare o ut of whole cloth, using a Korg patch titled "guitar feedback" to create a dirge, or playing Lerner and Lowe's "On The Street Where You Live" as a dramatic overture. Mr. Eggleston often says that he feels that music is his first calling, as much a part of him, at least, as his photography.