This French horn music for O Come, O Come Emmanuel is in the key of G (concert C), to play along with other winds and brass. Select the image below for a printable PDF of the melody. The O Come, O Come Emmanuel Band Play-Along page has more versions of this song, so you can play it with other woodwind and brass instruments. Visit the O Come, O Come Emmanuel sheet music page which features the carol in seven different keys. On that page you can find an instrumental range or key that is easier for you, as well as print an arrangement that allows you to play along with other instruments like strings or recorder.
See the transposition page for explanations and charts to help you determine the appropriate key to play in when performing with instruments that are not in concert key. More Christmas songs for French horn.