These performances will sound better on the BBC website than they ever could in RAH. That place is a disgrace. Horrid acoustics - just a big cavernous barn. If you sit too far away (not hard to do) there is no presence at all. No impact. The best "seats" in the place are the standing-room only arena. I heard M4 (and a whole lot more) there a couple of years ago. The recordings I listened to on-line were much more revealing, and frankly enjoyable, than being there live. Still, it's better than many American festival venues where they have to add electronic amplification to make the music heard.