Sage Gateshead announced that they will be finding a new name for the venue prior to The Sage opening in 2024. Building The centre occupies a curved glass and stainless steel building designed by Foster and Partners, Buro Happold (structural engineering), Mott MacDonald (engineering consultants) and Arup (acoustics), with views of Newcastle and Gateshead Quaysides, the Tyne Bridge and the Gateshead Millennium Bridge. Sage Gateshead contains three performance spaces; a 1,700-seater, a 450-seater, and a smaller rehearsal and performance hall, the Northern Rock Foundation Hall. The rest of the building was designed around these three spaces to allow for maximum attention to detail in their acoustic properties. Structurally it is three separate buildings, insulated from each other to prevent noise and vibration travelling between them. The gaps between them may be seen as one walks around inside. A special 'spongy' concrete mix was used in the construction, with a higher-than-usual air capacity to improve the acoustic. These three buildings are enclosed (but not touched) by the now-famous glass and steel shell. Sage One was intended as an acoustically perfect space, modelled on the Musikverein in Vienna. Its ceiling panels may be raised and lowered and curtains drawn across the ribbed wooden side walls, changing the sound profile of the room to suit any type of music. Sage Two is a smaller venue, possibly the world's only ten-sided performance space. The building is open to the public throughout the day. Concerts Sage Gateshead, hosts concerts from a wide range of internationally famous artists, and those who have played at the venue include Above and Beyond, Blondie, James Brown, Bonobo, Andy Cutting, De La Soul, Nick Cave, George Clinton, Bill Callahan, Crosby, Stills & Nash, Dillinger, Grace Jones, Gretchen Peters, Elbow, Explosions in the Sky, the Fall, Herbie Hancock, Mogwai, Morrissey, Mumford & Sons, Pet Shop Boys, Sunn O))), Nancy Sinatra, Snarky Puppy, Sting, Yellowman, Shane Filan of Westlife and others. In February 2015, it was one of the hosts of the second annual BBC Radio 6 Music Festival. It is also home to Royal Northern Sinfonia, of which The Guardian wrote there is "no better chamber orchestra in Britain", and frequently hosts other visiting orchestras from around the world. The current music director for Royal Northern Sinfonia is the pianist and conductor Lars Vogt. In late 2014, Royal Northern Sinfonia collaborated with John Grant, performing at Sage Gateshead, and other venues