The first of two concerts this week of Beethoven string quartets given by the Takacs Quartet. These are the final concerts of their acclaimed complete Beethoven cycle. In this programme, the music ranges from the bouyant good humour of Op.18 to the intense sublimity of Op.135, Beethoven's final quartet. Presented by Martin Handley. Beethoven String Quartet in B flat Op.18 no.6 Beethoven String Quartet in F Op.135 Beethoven String Quartet in C Op.59 no.3 Takacs Quartet Followed by a focus this week on Vivaldi's sensational set of violin concertos, L'Estro Armonico, played by the Orchestra of the Age of Enlightenment. Concerto for Four Violins in D RV 549 Alison Bury, Kati Debretzeni, Margaret Faultless, Matthew Truscott (violins).