A 12 ton composition

Question

Use a single note 12 different times
Uses a variety of notes and patterns of 12 beats
Uses each of the 12 notes of a chromatic scale once before repeating a note
Uses 12 beats of rest before each new tone is played

Answer 1

Warning: This composition may not be very pleasant to listen to due to the constraints given.

C – – – – – – – – – – –
rest – – – – – – – – – – –
C# – – – – – – – – – – –
rest – – – – – – – – – – –
D – – – – – – – – – – –
rest – – – – – – – – – – –
Eb – – – – – – – – – – –
rest – – – – – – – – – – –
E – – – – – – – – – – –
rest – – – – – – – – – –