This week's selection comes from Kevin Lemonnier, Preservation Audio Engineer.

This is the only known recording in existence of Arturo Toscanini (1867-1957) conducting the BBC Symphony Orchestra performing Elgar’s Introduction and Allegro Op. 47. The performance took place during the 1937 London Music Festival and was privately recorded off broadcast, onto a lacquer disc, by audio engineer Kenneth H. Leech (1892-1995).

Toscanini conducting Elgar's Introduction and Allegro Op. 47

 Portrait of the composer Arturo Toscanini c.1926 (J. Paul Getty Museum)

The audio quality is rather poor due to wear and shrinkage of the cellulose nitrate but it still reveals a driving performance from the Italian master. 

Follow @BLSoundHeritage and @soundarchive for all the latest news.

This week's selection comes from Cheryl Tipp, Curator of Wildlife and Environmental Sounds.

Sparkie Williams was a prize-winning talking budgerigar, renowned for his impressive vocabulary of over 500 words, sayings and rhymes. In 1958 he was crowned top bird in the BBC's International Cage Word Contest which turned him into an overnight star. His success led him to be the face (or should that be beak?) of an ad campaign for leading bird seed producer Capern and so impressed Parlophone that they offered him a record deal.

His owner, Mrs Mattie Williams, employed an almost military approach to Sparkie's oral development, dedicating several hours a day to teaching her beloved budgie to speak. Her Geordie accent can clearly be heard in Sparkie's delivery of the rhyme at the end of this recording.

Excerpts from Philip Marsden introduces Sparkie Williams_Parlophone 1958

Sparkie Williams (courtesy of the Great North Museum: Hanock)

After his death in 1962, Sparkie was stuffed and donated to the Great North Museum: Hancock in Newcastle where he is currently on display.

Follow @CherylTipp and @soundarchive for all the latest news.

This week's selection comes from Dr Eva del Rey, Curator of Drama and Literature Recordings and Digital Performance.

In this recording, made in 1991 at the Institute of Contemporary Arts in London, British literary theorist Terry Eagleton discusses the intricacies of the concept of ideology with French sociologist, anthropologist and philosopher Pierre Bourdieu (1930-2002).

Bourdieu explains his concept of symbolic violence, by which he means the systems of meaning that legitimize and thus solidify structures of inequality, often in a way that is undetectable and invisible to its very victims. 

Pierre Bourdieu and Terry Eagleton in conversation

Fight with Cudgels (c.1820-1823), Francisco de Goya. Wikimedia Commons.

This recording is an accessible introduction to one of the most influential social thinkers of the last three decades of the twentieth century, and also one of the very few available online featuring Pierre Bourdieu explaining his work in the English language.

Over 800 recordings of talks and discussions held at the ICA between 1982-1993 can be explored on British Library Sounds. 

Follow @BL_DramaSound and @soundarchive for all the latest news.   

This week's selection comes from Jonathan Summers, Curator of Classical Music Recordings.

Scottish composer Sir John Blackwood McEwen (1868-1948) had a distinguished career producing a large amount of music, little of which is heard today. He was Principal of the Royal Academy of Music from 1924-1936 and was knighted in 1931. His String Quartet No. 6, 'Biscay', written in 1913 (and confusingly published as No. 8), consists of three movements. The second and third were recorded in 1916 by the London String Quartet and a live recording from 1951 of the complete work exists from the Library of Congress. Here is the delightful third movement, La racleuse (The Oyster-Raker) from 1916.

String Quartet No. 6 (Biscay)_La racleuse

Portrait of Sir John Blackwood McEwan by Reginald Grenville Eves (Royal College of Music, CC BY-SA 4.0) via Wikimedia Commons

Visit Chamber Music on British Library Sounds to listen to more performances by the London String Quartet.

Follow @BL_Classical and @soundarchive for all the latest news

This week's selection comes from Cheryl Tipp, Curator of Wildlife and Environmental Sounds

There's nothing quite like the sound of walking through freshly fallen snow. This particular recording was made in the Kentish village of Knockholt, just after midnight on the 3rd February 2009. This signalled the start of a prolonged period of heavy snowfall that was to see most of the British Isles grind to a halt, forcing schools, railway lines and even airports to close because of the treacherous conditions.

Footsteps in the snow, 3 Feb 2009, Kent, United Kingdom, Phil Riddett

Visit British Library Sounds to listen to more recordings of weather from around the world.

Follow @CherylTipp and @soundarchive for all the latest news.