Visitors can step into a soundproof booth, record their own vocal over a pop hit, and remix it on the way out - the museum of the Grammy Awards insists on being played, not just viewed. The Grammy Museum, at 800 West Olympic Boulevard in the LA Live district of downtown Los Angeles, opened on 6 December 2008 as the culmination of the awards' 50th-anniversary celebrations. The four-storey, 32,000-square-foot museum starts visitors on the top floor and walks them down through the whole machinery .....