"Ms. [Teacher's name], I understand that [other student's name] is playing [piece] at the concert and I know they've worked hard on it. I was wondering if there might be other opportunities for me to perform in future concerts or events? I've been practicing diligently, and I would be honored to share my music with the school community."
Option 2: Express your willingness to collaborate or play a different piece
"Ms. [Teacher's name], I completely respect your decision to have [other student's name] play [piece] at the concert. I understand that they're very talented and passionate about the piece. However, I wanted to ask if there might be a possibility for us to collaborate on a piece, or if I could perform a different piece that showcases my strengths? I'm open to any suggestions you may have."
Option 3: Offer assistance or support in other ways
"Ms. [Teacher's name], while I understand that [other student's name] is playing [piece] at the concert, I wanted to offer my support and assistance in any way possible. Whether it's volunteering to help with preparations or providing feedback during rehearsals, I'm happy to contribute to the success of the concert in any capacity. I genuinely want to be part of this special event and support my fellow musicians."
Option 4: Explain your passion and dedication
"Ms. [Teacher's name], you inspire students to pursue excellence in music. Over the time, I've practiced assiduously and invested much effort in honing my piano skills. If an opportunity arises, whether at the concert or a different event, my participation will serve as a testament to the passion and dedication that I hold for music. Playing on stage allows me to share my passion and connect with the audience. While [different student] is well-suited to perform [piece], I'm confident that I can bring my own unique interpretation to any piece you assign."