[1] Dowdeswell played lead trumpet with the National Youth Jazz Orchestra from 2012 to 2014.
[2] Throughout his career, Dowdeswell has performed with Jamie Cullum,[3] Al Jarreau, Michael Bublé, Peter Andre, Josh Groban and Alfie Bowe.
[4] He formed the Louis Dowdeswell Big Band, in which he collaborated with fellow trumpeter Wayne Bergeron and trombonist Callum Au.
[5] They arranged a series of movie and TV series soundtracks (including Game of Thrones, The Incredible Suite, and Let it Go) for jazz band.
[6] He has played soundtracks for movies, including No Time to Die.