Musician best remembered for his musicology and analysis. He wrote "Essays in Musical Analysis," which spanned seven volumes.
He accepted a teaching position at the University of Edinburgh in 1914, where he established the Reid Orchestra.
He was given a knighthood in 1935.
His family encouraged his passion for music. He began studying piano and composition while he was still young and eventually became a student of the famed Hubert Parry.
He did much to preserve and compile the works of Johann Sebastian Bach.