Beautiful hotel and restaurant in central London. I tuned their Yamaha disclavier this morning. For those of you who don't know a disclavier is Yamahas take on the old pianola system. It plays itself. Also it can record you playing and play it back to you exactly as you did. Plus - can also be played by another piano anywhere in the world through the Internet. They are pretty amazing. Some of them have speakers so the piano plays while the speakers play the other instruments.