Sebastian is a British–New Zealand musician, born in 1996 in Colchester, UK. He graduated from the University of Oxford in 2017. Primarily a composer, his music has been commissioned by Aldeburgh Music, the BBC, Cambridge University, DanceEast and New Music North West. Aged only 14, Kollaps, for clarinet and electronics, received its premiere at the Royal Albert Hall, London, by Jordan Black in 2010. This was followed by Five Lorca Settings (Jesus College, Cambridge, 2011), Notturno (Snape Maltings Concert Hall, 2012), and Narcissus (Chetham’s School of Music, Manchester, 2013). More recent works have included a song cycle, Chrysalis (Christ Church, Oxford, 2015, subsequently broadcast on BBC Radio 3 in 2016), a chamber opera, The Sun (the premiere of which he conducted, at Christ Church, 2016), and a work for large orchestra, Idyll-Cortège (the Sheldonian Theatre, Oxford, 2017). He written for Aldeburgh Young Musicians, Chetham’s New Music Ensemble (an ensemble he founded), the National Youth Orchestra for Indian Music, and the National Youth Orchestra of Great Britain. In 2010, he won the BBC Young Composers’ Competition as one of the youngest ever winners. Also for the BBC, he featured in Radio 3's Composers of Tomorrow. In recent years, he has also performed frequently as a pianist. In 2016, he was invited to perform at the memorial concert for Peter Maxwell Davies at St John’s Smith Square, London, in which he performed the Five Pieces for Piano Op. 2. He also enjoyed working with composer Rebecca Saunders on a performance of her Duo. In 2015, he co-founded the Holywell Trio, with whom he performed frequently in Oxford.