Describing it as 'music's secret fire', Tom Service explores the world of the viola. Speaking to Lawrence Power, one of the world's great viola players, who has commissioned numerous works for his instrument, and Sally Beamish, viola player and composer, Tom sets out to unlock the key to the viola's elusive sound and to understand how it can drive the energy of the orchestra.

Studies began life as an aid in the struggle to master the piano within the human limitations of two hands and ten fingers. But from being the bane of many a pianist's life and a means of selling more pianos, these arid technical exercises flowered into some of the greatest music written for piano from Chopin, though Debussy to György Ligeti. And in Conlon Nancarrow's studies for player piano, they even inspired the greatest set of keyboard works beyond any human ability.

To find out how and why studies evolved to transcend their original function, Tom Service is joined by musicologist Katy Hamilton and talks to Pierre-Laurent Aimard who worked closely with Ligeti on his extraordinary series of studies, widely regarded as some of the greatest piano music of the 20th century.

David Papp (producer)

What gives away a composer's personal style? How can we spot their musical signatures? And having done so, could they be convincingly copied?

Tom looks for clues in the potentially similar music of Mozart and Haydn, and in the English styles of Vaughan Williams and Elgar, and speaks to art historian and discoverer of lost masterpieces, Dr Bendor Grosvenor.

Tom Service explores some of the most successful working partnerships in music. Mozart and Da Ponte wrote some of Mozart's most famous operas but what came first, the music or the words - what's more important? With the help of librettist and translator Amanda Holden, Tom discovers what makes a musical spark.

Produced by Calantha Bonnissent

Baroque, Classical and Romantic... the big categories of music history all have their big-name composers. But what about the composers less easy to categorise, the ones who fall in between the gaps? Tom Service goes in search of the Inbetweeners from all eras and, with the help of CPE Bach aficionado Andreas Staier, discovers how these once hugely influential figures still speak directly to us now.

David Papp (producer)

As we move from one year to the next, Tom indulges in some speculative musical time travel.

Tom Service investigates what happens when musical rhythm gets stretched or loosened. What is going on when a jazz band makes a tune swing, or a Viennese orchestra makes a waltz swirl? Liberties are taken with strict musical time in order to add expression and excitement - but you have to have the knack.

Beethoven 5: one of the most instantly recognisable and enduring works in all classical music. How did Beethoven compose it? How did he whittle down his musical choices from the endless number available to make this seemingly inevitable-sounding, gripping orchestral drama?

For insights into the essence of composition -- how you decide what comes next -- Tom Service talks to one of today's most exciting young composers. Shiva Feshareki explains how she decides one musical path over another in her own work and what choices she has made in her new piece based on a specially recorded performance of the first movement of Beethoven's Fifth.

Part of Radio 3’s Beethoven Remixed project, which offers musicians and non-musicians alike the chance to create their own remixes of Beethoven’s Fifth, using recordings made by the BBC National Orchestra of Wales: https://www.bbc.co.uk/programmes/p08x4b5z

David Papp (producer)

Tom Service explores the music of Sibelius as a force of nature with 'Wild' writer Jaye Griffiths.

The inspiration for Sibelius's Fifth Symphony - the famous flight of sixteen majestic swans across the lake from his house north of Helsinki was, in the composer's words 'one of my greatest experiences. Lord God, that Beauty...' It's a well-known story, but in today's Listening Service Tom argues that Sibelius's music isn't just a prettified depiction of nature, it's a wilderness itself, with its own teeming, wild ecologies: from the pagan creationism of Luonnotar, to the primeval forest gods of Tapiola, and the elemental forces of the Oceanides.

With writer Jaye Griffiths on wilderness as freedom, listening to a woodlouse, devotion to absolute life, and silence as extinction.

Good vibrations or horrible wobbling? Why do singers use vibrato?