Introduced by Jane Glover. In this year's Henry Wood Promenade concerts, the conductor Klaus Tennstedt makes a welcome return to the podium after a long absence through illness. With the London Philharmonic Orchestra led by David Nolan, of which Tennstedt is Principal Conductor, and the distinguished mezzo-soprano Brigitte Fassbaender, who opens the programme as soloist in the haunting song-cycle, Mahler: Kindertotenlieder. Renowned for his interpretation of Mahler and Brahms, Tennstedt talks to Jane Glover about their contrasting musical personalities, and conducts Brahms: Symphony No 4 in E minor, the composer's crowning symphonic achievement.