 In addition, Montague has created multi-channel electroacoustic sound environments in collaboration with the sculptor, Maurice Agis in Agis's large Colorspace and Dreamscape inflatable sculptures, and composed a number of music theatre works for outside spaces such as his Horn Concerto for klaxon horn soloist with an orchestra of automobiles, and [Bennett's Bike Concerto for piano soloist (World Superbike Champion, James Toesland), symphonic brass ensemble, percussion and 8 motorcycles for the 2007 World Superbike Championships, Brands Hatch Race Track (UK).He has organised and directed 13 John Cage - Musicircuses including John Cage Centennial celebration (2012) performances at English National Opera (The London Coliseum), the Old Royal Naval College (Greenwich) in 2012, Centre Pompidou-Metz (France) in 2016, and the FSU Museum of Fine Arts (Tallahassee, FL) 2019.He was the music director for the Royal Opening of The Francis Crick Institute (London) 2016, and organised and directed one of the international Merce Cunningham Centennial dance/music events at Florida State University in 2019.