Listening to sound is pretty essential for any musician. But some musicians go even farther by developing their own unique philosophies about it, and Slow Six is such a group. They describe themselves as life-long musicians sounding out a room together, and use amplified instruments coupled with computer software to create ambient atmospheres, and much more. Tonight we hear a piece of Slow Six's Christopher Tignor, from their evocatively titled album Private Times in Public Places. Also, music of Fred Lerdahl and Samuel Barber.