"Can the devil play the organ?" asked Jules Verne. What a question! Listen to the incomparable crackling of the Mephisto Waltz, the fugue sparking like the flames of inferno. Then the nightmare miraculously yields to the angelic tones of the Suite francaise, followed by the down-to-earth Variations serieuses. What magic enables Karol Mossakowski to glide so swiftly from one realm to another? A few minutes of improvisation... For his first album, the talented Karol Mossakowski (artist in residence at Radio France for the 2020/22 seasons, following Thomas Ospital), recorded on the organ Gerhard Grenzing of the Auditorium of Radio France his transcriptions of the works of four great composers: Bach, Mozart, Mendelssohn and Liszt. To enrich this contrasting program, Karol Mossakowski was inspired by pianists of the 19th century and improvised a few bars to move from one shore to another where another key, another atmosphere will reign.