As the 4th part of the Tetratunes Series, Keytunes introduces more difficult keys and shifting techniques.

Several pieces are arranged from the classical repertoire.

Contents
- W.A. Mozart: Menuetto and Trio
- F. Schubert: Ballet Music
- A Pair of Hornpipes
- E. Grieg: Watchman's Song
- J. Stanley: Siciliana
- L.v. Beethoven: Variations on a Russian Theme
- C.M.v. Weber: Waltz
- S.M. Nelson: Bonnie Dundee
- J.P. Rameau: Rigaudon 1 & 2