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Discover definitive recordings of the greatest classical music with your trusted guide, Sarah Walker. Her guest this week is the broadcaster and writer Andrew Marr.

9am
A selection of music including '5 Reasons to Love...La Folia.' This week Sarah explores the musical phenomenon La Folia, one of the oldest remembered European musical themes. Literally meaning madness or folly, this theme has its roots in the 16th century and was first published in 1672. It has since been used by more than 150 composers.

9.30am
Take part in our daily musical challenge: identify a piece of music played backwards.

10am
Sarah's guest this week, discussing his favourite classical music every day at 10am, is the broadcaster and writer Andrew Marr. He reveals the important role music played in his recovery after he suffered a stroke in 2013, and in particular the recuperative effects of Mahler. Andrew also shares his love of Verdi's Falstaff, Schubert lieder and the music of Thomas Arne, as well as his interest in Russian music including works by Shostakovich and Prokofiev.

10.30am
Sarah's featured artist this week is the virtuoso violinist Joshua Bell. One of the most celebrated violinists of his time, Bell has made more than forty recordings since he recorded his first LP aged just eighteen. Equally at home as both a soloist and a chamber musician, Bell is also an acclaimed orchestra leader and has recently named as the Music Director of the Academy of St Martin in the Fields. Sarah explores Bell's performances of works by composers including Tchaikovsky, Debussy and Mozart.

11am
This week's Essential Choices are all contrapuntal masterpieces.

Beethoven
Grosse Fugue Op.133
Takács String Quartet
DECCA.