Complex sentence: In 1938 Foort designed and commissioned a mobile organ from the American firm M. P. Möller, which was first set up at the Drury Lane Theatre, London in only five days, enabling him to make his first recording on it on the fifth day.
Split into simpler sentences: In 1938 Foort designed and commissioned a mobile organ from the American firm M. P. Möller. Foort recounted how it was first set up in only five days at the Drury Lane Theatre, London, and that he made his first recording on it on the fifth day.