He started to study music with his father, Carles Casals i Ribes.
Afterwards, he went to Brussels in order to improve his violin and composition skills, with Mathieu Crickboom and Joseph Jongen; and in 1918 he moved to Prague, where he was a pupil of cz:František Suchý.
[1][2] He established the String Quartet "Enric Casals" in 1921, with which he toured Europe, offering concerts in France, Belgium, England, Switzerland and Spain.
[1] He played as the solo violinist of the Barcelona Symphony Orchestra (1910 - 1912), the Kurot Symphonische Orchester in Saint Petersburg (1912 - 1914), the Pau Casals Orchester (1920 - 1936) and the Gran Teatre del Liceu (1924 - 1935).
He was founder and director of the Musical Institute Casals and responsible of the famous Prades Festivals (especially between 1955 and 1983).