'Flax' is a 79-minute solo work for piano by the Canadian composer Martin Arnold. It was commissioned in 2020 by the pianist Philip Thomas, but sadly Philip became seriously unwell shortly afterwards. Martin Arnold completed the composition in 2021, and - as Philip was now unable to perform it - the project was taken on by Kerry Yong, with Philip's agreement and support. 'Flax' was premiered by Kerry Yong at the Huddersfield Contemporary Music Festival in November 2023, when the CD recording was released.