The [Uncertain] Four Seasons Algorithmically Recomposes Vivaldi's "The Four Seasons" for 2050

The [Uncertain] Four Seasons Algorithmically Recomposes Vivaldi's "The Four Seasons" for 2050

Jan. 12, 2021

AKQA and Jung von Matt, in partnership with The Sydney Symphony Orchestra, composer Hugh Crosthwaite and Monash University's Climate Change Communication Research Hub have used climate data to recompose Vivaldi's 'The Four Seasons.' One of the most loved classical pieces of music, Vivaldi's 'Four Seasons' was written three centuries ago and is an endlessly inventive depiction of each season, influenced by the rhythms of the year.

To portray a future where the world has failed to act decisively on global warming, The [Uncertain] Four Seasons aims to place pressure on world leaders to act decisively at the upcoming United Nations Climate Change Conference.

To inspire action on climate change ahead of the conference in November 2021, The [Uncertain] Four Seasons for the year 2050 was composed to warn of future dangers, offers hope and inspires action. Building upon the NDR Elbphilharmonie Orchestra's 2019 performance in Hamburg, which fused Vivaldi's music with historical weather data, The first variation of The [Uncertain] Four Seasons will be performed by the Sydney Symphony Orchestra at the 2021 Sydney Festival today, January 12th 8.30 pm AEDT. You can view the performance here.

The [Uncertain] Four Seasons is the output of a musical design system that combines music theory with computer modelling to generate local variations of Vivaldi's original 1725 composition. The algorithm alters the musical score to account for predicted changes in rainfall, biodiversity and extreme weather events as laid out in the IPCC's reports. 

A local variation has been generated for every major orchestra in the world/ Musicians are currently being invited to perform their local interpretation. They are available on the website

Tim Devine, Executive Creative Director, AKQA Australia and New Zealand said:

”Our teams are always looking at the world differently. The [Uncertain] Four Seasons is our desperate attempt to show climate data in a new way that people will not only understand, but feel. We’ve all watched the documentaries and seen the graphs – our hope is that by reflecting the risks of climate change in music we can help people experience what a radically new aesthetic and lived experience might feel like.”


Joachim Kortlepel, Executive Creative Director, JVM said:

"In 2019, we first looked to the past and used historical climate data to create The For Seasons: a present-day version of Vivaldi's masterpiece. Now, with the [Uncertain] Four Seasons, we're bringing it into the future, making climate change audible.”


Hugh Crosthwaite, Melbourne Composer said:

“Vivali’s original composition was an innovation for its time, and his visceral translation of nature into music continues to capture the imagination of audiences today. In that way, it’s the perfect canvas for us to communicate an urgent message about the environment: if we do nothing now, the harmonious environment we rely on for inspiration and nourishment will be forever changed.” 


The effects of global warming differs by location. Some regions experience more extreme flooding, while others will suffer longer and more severe drought. 

Enter your location to hear how climate change could affect the seasons in your local area in 2050. More information about The [Uncertain] Four Seasons, including downloadable musical scores for international orchestras and a detailed explanation of the musical design system behind the global project are available at

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