Choristers from all over Madrid gather in front of Reina Sofia museum to sing for peace in Ukraine and throughout the world. "It is above all a wake-up call so that we don't forget that there is still not only the war in Ukraine but also more wars," says chorister Elena Redondo. "We are brothers, we are relatives, we are friends" adds Ukrainian singer Elvira Polyenova. The event was organised last year for the first time. Under the eyes of spectators from around the world, choirs come together once again in the "perfect instrument to send messages of unity and peace," according to coordinator Mariano Garcia. IMAGES AND SOUNDBITES