architect frank gehry designed it for his friend daniel barenboim it took just three and a half years to build from the initial idea until the opening. every musician who's played there is fascinated. there is something really special about it. in part i think that it's an oval it's round. because in every concert hall from the worst to the best there are two communities one is the community that is playing on the stage. and then there's the audience community that is listening bill but here there is no stage we play on the floor and it's all one round. so that means that before we start to play we are already in one community that is not sentimentality it's something totally direct and every musician who comes out of the hole so to speak that's what it looks like in the whole end to the whole is struck by this sense of one community. and a good one thank you audience feels it immediately in the opening concert no other concert hall seats the listeners so close to the musicians and the music. politicised is there. even when he's political he's also private as a musician he's private a

and state opera celebrated its two hundred seventy fifth birthday with a concert conducted by daniel barenboim the performance also marked a homecoming after a major renovation of the opera house that took seven years and cost over four hundred million euros. the first opera premiere is to be engelberg humperdinck hansel and gretel on friday the house on today and wind numbers among the world's leading music venues. well it's the place to go for climate change experts when they need to check the planet's vital signs greenland where ice cores drawn from glaciers show the earth's climate is in fact responding to changes in greenhouse gas levels but sadly the evidence of rapid climate change is already much too evident on the surface german photographer all of auto becca has been documenting shrinking ice sheets in greenland for years now and his pictures tell a beautiful yet tragic tale. all of us a baker has been exploring the world of icebergs and places since two thousand and three he's become an eyewitness to its decline ever since if the temperature were to rise by five degrees celsius by t

new acoustics after the soft opening as you called it do we know if they're any better well daniel barenboim the general music director of the opera house of course he was the one who was very concerned about the acoustics and he is given the thumbs up the signs are very good they've raised the ceiling we've got pictures now this extraordinary they've raised the seating by five meters and put in this ceramic net. so that the sound can travel further and reverberate around the building you see making the sound much warmer in the house this is cost a huge amount of money but this was barenboim's greatest wish and the maestro does tend to get his way things has to be said and as we can see. there's a clarinet is trying out your cue sticks a lot of the musicians i spoke to some of the musicians they do say the acoustics are doing very well and are very good indeed now briefly but is the only capital city in the world to have three opera houses do we need them i say yes i say yes as well of course i would a man who loves culture but the box office is a bowl three houses doing very well the staats