1. Musicianship: The members of the choir should have a solid understanding of music theory and performance techniques. They should be able to sight-read accurately, have good vocal tone and resonance, and blend well with other voices.
2. Blend: The choir should have a beautiful blend of voices. The different sections (sopranos, altos, tenors, and basses) should balance each other out and create a harmonious sound.
3. Expression: The choir should be able to express the emotions of the music they are singing. They should use dynamic contrasts, vocal color, and articulation to bring the music to life.
4. Interpretation: The choir should have a clear interpretation of the music they are singing. They should understand the composer's intent and be able to communicate that to the audience.
5. Stage presence: The choir should have a confident and poised stage presence. They should make eye contact with the audience and move in a way that is appropriate for the music.
6. Organization: The choir should be well-organized and have a clear sense of purpose. They should have a conductor who is able to effectively lead them and bring out their best performance.
7. Communication and support: The choir should have a sense of camaraderie and a strong sense of support from their conductor and each other. They should be able to communicate their ideas and feelings in order to create a cohesive performance.
8. Willingness to learn and improve: The choir should be willing to put in the time and effort to learn and improve their singing. They should be open to feedback and should be constantly striving to grow and become better musicians.
By developing these qualities, a choir can achieve a high level of excellence and bring joy to the people who hear them sing.