Deutsche Grammophon artists in all BBC programmes
Alison Goldfrapp on the chaos and order of Ligeti's Atmosphères
Michael Berkeley's guest is sitar player and composer Anoushka Shankar.
Musician and composer Nitin Sawhney on the last moments of his mentor, Ravi Shankar.
Mona Siddiqui recounts an emotive time hearing her son play his violin.