This trumpet arrangement of Ding Dong! Merrily on High is in the key of D (concert C). Select the image below for a printable PDF of the melody. The Ding Dong! Merrily on High Band Play-Along page has more versions of this song, so you can play it with other wind and brass instruments. The string arrangement of the carol is also in the key of concert C, so you can play it with violin, viola, cello, and bass. Also included on this page is an easier version for trumpet in the key of G (concert F). The range does not go as high, and it is a bit easier to play. Visit the Ding Dong! Merrily on High lead sheet page which features the carol in seven different keys. On that page you can find an instrumental range or key that is better suited for you, or print an arrangement that allows you to play along with other instruments.
This arrangement of Ding Dong! Merrily on High is in a 4/4 time signature. If you would like to play it at a faster tempo, you can think of it as being in cut time (2/2 time signature). Feeling the half note equal to one beat will make it easier to perform the carol at a quicker tempo.