Being a piano teacher in an institution usually requires the following certificates or requirements: 1. Piano performance certificate: You usually need to obtain a corresponding level certificate through piano grading or similar music examinations to prove that you have a certain level of piano Playing skills. 2. Music Education Degree or Certificate: Having a music education degree or related educational certificate demonstrates your expertise in educational theory and methods. 3. Teaching experience or internship experience: Having teaching experience or participating in piano teaching internships can increase your competitiveness in the teaching field. 4. Membership of professional associations: Membership in relevant music education associations or associations can help establish professional connections and enhance reputation. 5. Excellent interpersonal communication and organizational skills: As a piano teacher, it is crucial to effectively communicate with students and their parents and organize lessons.