"Ding Dong Merrily on High" is a traditional Christmas Carol whose lyrics were written by the English composer George Ratcliffe Woodward who had an interest in church bell ringing which is the subject of the carol. However the melody is a much older one which was originally a French Dance tune, as recorded in the 16th century by Jehan Tabourot in his study of French Renaissance social dance (including music and steps) called Orchésographie. You can download the sheet music for this arrangement, or midi or mp3 files using the links in the left hand menu.
In addition the following sheet music allows a range of other instruments to play the carol either as a solo or together in concert: Piano or Keyboard, Guitar (with Tabs and Chords), Piano Accompaniment, Main (instruments in C, High (instruments in C), Low instruments in C - e.g. Bassoon or Cello, instruments in B-flat e.g. Clarinet or Trumpet, Cor Anglais, French Horn (in F), Alto Saxophone or Viola.