He also took masterclasses and lessons with Mstislav Rostropovich, János Starker,[1] Steven Isserlis, Boris Pergamenschikow, Miklós Perényi, Bernard Greenhouse,[2] Valentin Erben (Alban Berg Quartet), William Pleeth, Zara Nelsova, and Ferenc Rados.
As chamber musician, he has collaborated with the Jerusalem and Endellion Quartets, Gidon Kremer, Yuri Bashmet, Olivier Charlier, Alena Baeva, Ilya Gringolts, Pekka Kuusisto, Vilde Frang, Chen Halevi, Julian Bliss, Martin Roscoe, Finghin Collins, Ashley Wass and Julius Drake, among others.
[8][better source needed] Harwood appears in Phil Grabsky's 2009 documentary In Search of Beethoven which received its theatrical premiere at the Barbican Theatre, London, was broadcast on Sky Arts, and shown in cinemas worldwide.
[9] In 2002, Harwood took part in the Park Lane Group Young Artists' Series on the South Bank and premiered solo works written for him by Dominic Muldowney and Martin Butler.
For his solo album Composing Without the Picture, Harwood premiered works written for him by Christopher Gunning, Alex Heffes, Fernando Velázquez, and Benjamin Wallfisch.