For a person's demeanor:
* Calm and collected: This suggests a peaceful and controlled presence, even in stressful situations.
* Serene: This emphasizes a sense of tranquility and inner peace.
* Poised: This highlights a confident and graceful manner.
* Unruffled: This implies that the person is not easily disturbed or upset.
* Controlled: This focuses on the person's ability to manage their emotions and actions.
* Self-assured: This emphasizes the person's confidence in themselves and their abilities.
* Well-mannered: This suggests that the person is respectful and polite in their interactions.
* Balanced: This describes a person who is not easily thrown off by emotions or challenges.
For a piece of work:
* Well-crafted: This suggests that the work is skillfully made and carefully designed.
* Harmonious: This emphasizes a sense of balance and unity in the work.
* Elegant: This describes a piece of work that is refined and aesthetically pleasing.
* Thoughtful: This implies that the work was created with care and consideration.
* Refined: This highlights the work's polished and sophisticated nature.
* Structured: This suggests that the work has a clear and organized form.
For music:
* Melodic: This describes music that is flowing and pleasing to the ear.
* Harmonious: This emphasizes the pleasing relationships between different notes in the music.
* Balanced: This suggests that the music is not dominated by any one element.
* Subtle: This describes music that is understated and refined.
* Sophisticated: This implies that the music is complex and nuanced.
The best way to describe "composed" depends on the specific context and what you want to emphasize.