Complex sentence: Harrison recorded the track at an impromptu session held at his Friar Park home studio with the L.A. Express, who were touring Britain as Joni Mitchell's backing band at the time.
Split into simpler sentences: Harrison recorded the track at an impromptu session held at his Friar Park home studio. On the recording, he was supported by the L.A. Express, who were touring Britain as Joni Mitchell's backing band at the time.