Graham Barber performs and discusses the organ music of organist and composer Francis Jackson, born in 1917.  He includes an excerpt from the Hymn Prelude on Jackson's own hymn tune, East Acklam, and the ending of Intrada, from his Seven Pieces for Organ. 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 --…