Describe the harmony. Does the music begin in a major or minor key? Describe any changes that occur.

Title: Calmness
Tempo: 90 BPM

Dynamic markings:
- Pianissimo in measures 1-8
- Fortissimo in measures 9-16

Instrument: Piano

Key signature: C major

Composition:
(1) E - D - C - G - A - B - C - D (piano)
(2) E - F - G - A - B - G - F - E (piano)
(3) D - E - F - G - F - E - D - C (piano)
(4) G - A - B - C - D - E - D - C (piano)
(5) A - B - C - D - E - F - G - A (piano)
(6) B - A - G - F - E - D - C - B (piano)
(7) E - D - C - B - A - G - F - E (piano)
(8) G - A - B - C - D - E - F - G (piano)
(9) B - C - D - E - F - E - D - C (piano)
(10) A - G - F - E - D - C - B - A (piano)
(11) F - E - D - C - B - A - G - F (piano)
(12) D - C - B - A - G - F - E - D (piano)
(13) E - G - B - D - F - A - C - E (piano)
(14) F - D - B - G - E - C - A - F (piano)
(15) G - E - C - A - B - D - F - G (piano)
(16) C - E - G - B - D - F - A - C (piano)

This composition starts soft and peaceful and gradually builds up to a powerful and dramatic climax before returning to C's calm tonic note.

The harmony in this composition is primarily in the key of C major, with a calm and serene mood in the beginning. The music starts in a pianissimo dynamic marking, creating a gentle and soothing atmosphere. As the composition progresses, there is a shift to a fortissimo dynamic marking in measures 9-16, creating a powerful and intense moment before resolving back to the calmness of the tonic note C. The changes in dynamics and intensity add depth and emotion to the piece, showcasing a range of feelings from tranquility to intensity before returning to a sense of peace.