Braithwaite was born at West Croft, Main Street, Egremont in Cumberland and educated at St Bees School.
[1] He trained at the Royal Academy of Music, studying clarinet with George Clinton, piano with Cuthbert Whitemore (1877-1927) and organ - as well as composition with Frederick Corder[2] An exact contemporary there was Arnold Bax.
The 14 minute long orchestral scherzo A Night By Dalegarth Bridge was performed for the first time in Bournemouth in 1921[12] and repeated the following year.
[13] Braithwaite stayed in Bournemouth during the Second World War, performing in and composing for the newly founded Wessex Philharmonic Orchestra.
[14] There is currently only one modern recording of his music, the Pastoral Lullaby for horn and organ [15] As an artist Braithwaite made etchings of landscapes in Dorset and Lancashire.