Interesting. The NYT reports that Esperanza Spalding has talked her record company into a marathon live-streamed session during which she'll compose and track her next album live in studio. But recently Ms. Spalding, 32, has grown a little wary of her own ambitions, and for her next album, which she announced on Wednesday, she is heading straight to the creative source. Starting the morning of Sept. 12, she will spend 77 straight hours in the studio, bringing with her a few musicians but no pre-written songs. Over those roughly three days, she will write, arrange and record a full-length album, “Exposure,” while streaming the experience live to a web audience. She is aiming to finish 10 songs, most with lyrics.