Composer: Jehan Arist[id]e Paul Alain (3 February 1911 - 20 June 1940)
Pianist: Jean Dubé (born 3 December 1981)
Also available is this alternate score video with the same piece played by Georges Guillard:
• Jehan Alain - Lumière ...
Selon la description de cette chaîne, je ne possède rien dans cette vidéo. La musique et les performances ont été téléchargées exclusivement et entièrement à des fins de divulgation et de diffusion de l'intérêt pour la musique et les arts.
As per the description of this channel, I do not own anything within this video. The music and performances have been uploaded for exclusively and entirely for the purposes of divulgation and spreading interest in music and the arts.