Folk duo Pound & Stevens have transformed, and added to, Holst’s The Planets Suite and tour the new work this week with Britten Sinfonia. Will Pound explains why playing by ear is his greatest strength

I’m a harmonica and accordion player and one half of folk-classical duo Stevens & Pound. As a multi-instrumentalist I am rooted in a folk tradition that is oral, aural and communal. Music and song are passed down by ear, either through recordings or – more fun – traditional music sessions. Here, players and singers get together to share, swap and play tunes, drawing from a repertoire that is always evolving. While collections of tunes are certainly notated, their scores act as a skeleton – providing the basic architecture of pitch and rhythm but rarely offering explicit guidance on how the music should be played.

Delia Stevens and I are about to head out on tour, performing with the Britten Sinfonia and Robert Macfarlane in a new work called The Silent Planet, a recomposition of Holst’s Planets suite. It’s the culmination of 18 months of rehearsals and revisions, and the score for this 60-minute work, orchestrated by Ian Gardiner, totals 165 pages and includes Earth, an entirely new composition.