This French horn music for It Came Upon a Midnight Clear is in the key of B flat (concert E flat). Select the image below for a printable PDF of the melody. The It Came Upon a Midnight Clear band play-along page has more versions of this song, so you can play it with other brass and woodwind instruments. The string arrangement of the carol is in the key of D. Visit the It Came Upon a Midnight Clear lead sheet page which features the carol in seven different keys. There you can find your desired instrumental range, or print an arrangement that allows you to play along with string instruments.