The range of professionalism among teachers of piano is undoubtedly wide. "Competent instruction is not always assured by the number of years one has taken lessons", warned piano pedagogue and writer of numerous pedagogical books, James Bastien.
The factors which affect the professional quality of a piano teacher include one's competence in musical performance, knowledge of musical genres, music history and theory, piano repertoire, experience in teaching, ability to adapt one's teaching method to students of different personalities and learning styles, education level, and so on.
