So far you have learnt all the notes between middle C and high D. In this lesson, you will learn two new low notes (B and Bb), which complete the notes in the low register, and four new high notes above high D which complete the high register. Any notes above high F# are in the altissimo register and will be dealt with later in the book. shown below are the fingerings for B and Bb in the low register. Remember that Bb is enharmonically the same as A#.
Here is an example which makes use of both new notes. These very low notes may take some time to control properly, but stick with it, practice them for a short time each day and your perseverance will definitely pay off.