Here are the notes!
* indicates the note is played in the upper register (register key)
Part A (phrase 1) Bb D F G— F— Bb C C Bb D—
( phrase 2) D F G A G F D C C Bb C C D Bb—-
(phrase 3) Bb D F G— F— Bb C C Bb D—
(phrase 4) D F G Bb* C* D* C* Bb* G Bb* C* C* Bb* Bb*—- G Bb* C* C* Bb* Bb*—-
Part B (phrase 1) Bb* A G— F—- Bb* A G A G F D—–
(phrase 2) G Bb* C* C* Bb* Bb*—-