This August, we’re shouting about trumpeter Håkan Hardenberger, who performs a major series, titled The Trumpet Shall Sound, with the Philharmonia Orchestra in December 2015/January 2016. We caught Håkan after his rehearsal with the conductor, Andris Nelsons, as they prepared for a performance of HK Gruber's Aerial trumpet concerto, composed for Håkan. The two artists spoke about their friendship and working relationship following an intense day of rehearsals. Find out more here: http://www.philharmonia.co.uk/hakanhardenberger