Steven Wilson's : The Harmony Codex

Theo appears as a guest musician on 3 tracks on the new Steven Wilson album 'The Harmony Codex' released 29 September 2023.On the opening track 'Inclination' Theo plays flute, on 'Beautiful Scarecrow' he contributes some Duduk and on the 10 - minute epic 'Impossible Tightrope', he is featured with a tenor sax solo.