In 1986, the Bangkok Symphony Orchestra commissioned a five movement symphony for Bhumibol Adulyadej, the King of Thailand's 60th birthday.[1] A further commission Fanfare and Rhapsody was performed in 2006 as part of the celebrations for His Majesty the King's 60th Jubilee.[4]
From 1990 to 1993, Wallace toured internationally as a member of The Lindsay Kemp Company devising and performing music with composer percussionist Joji Hirota for the show Onnagata and the film Travelling Light.[3] In 1993, he was musical director for the West End production and cast recording album of Elegies for Angels, Punks and Raging Queens.
In 1994, he met the American lyricist Fran Landesman.[1] with whom he collaborated until her death in 2011 writing some 300 songs.[5] Theatre shows based on Landesman/Wallace songs include There's Something Irresistible in Down (1996) produced at the Young Vic by members of the Royal Shakespeare Company, Forbidden Games (1997) at the Ustinov Theatre Bath, the Pleasance Theatre Edinburgh and the Gdansk Shakespeare Festival and Queen of the Bohemian Dream (2007) produced at the Source Theatre in Washington, D.C.
From 2003 to 2006, Wallace was musical director for jazz singer Clare Teal. He arranged and directed her 2004 album Don't Talk (SonyBMG) and wrote arrangements for her broadcasts with the BBC Big Band, the BBC Concert Orchestra and for television appearances including two on the Michael Parkinson Show.[6]
Between 2009 and 2011, he toured in the UK and US with singer Barb Jungr and in 2010 worked with The Waterboys on the premiere of "An Appointment With Mr Yeats" at the Abbey Theatre, Dublin, Ireland. He arranged and co-produced Jungr's 2010 album The Men I Love (Naim Records) and has produced albums by singers Ian Shaw (Jazzhouse), Sarah Moule (Linn Records),[7] Nicki Leighton-Thomas (Candid Records), Pete Atkin (Hillside Music) and Gill Manly (Linn Records)[8]