LONDON David Bowie was working on an "18th century" themed musical at the time of his death, which will feature in a new London center dedicated to the seminal British artist, the BBC reported on Sept. 5. The V&A museum will open the free-to-access home for Bowie's vast archive in Stratford, east London, on Sept.13. One exhibit will be notes from a previously unknown project called "The Spectator," which he described as an "18th Century musical." The work showcased Bowie's fascination with art