In M is for Messiaen, Anne Page gives an introduction to Messiaen's musical language and religious beliefs, illustrated with excerpts from a live performance of his music that she gave in Brussels Cathedral. This video is one of 26 in a series entitled An A-Z of the Organ, filmed by the RCO team and colleagues around the UK at the height of the Covid-19 lockdown. Starting with A for Anthology and concluding with Z for ? (wait and see!), the series aims to explore various perspectives on the organ - its tonal characteristics, some of…