Performer: Matti Hirvonen

Two of the world’s most sought-after opera singers giving Lieder recitals on the same night. The kind of painful choice which Viennese musical institutions and their chaotic schedules throw up all too regularly. I went for Nina Stemme over Jonas Kaufmann on the basis that she gives fewer solo recitals, despite harbouring reservations about how her big voice would fare in this repertoire.