Time spent with the student - Lessons, performance classes, group lessons.
Time spent in preparation for the student - Trips to the music shop, lesson planning, bookkeeping, development of curriculum, etc. It has been cited by professional music journals that for every hour enrolled in piano lessons, you are investing in at least 2 hours of the teachers time!
My training and experience
Concert costs and preparations - Programmes, refreshments, facility rental.
Professional organisation memberships - I am a member of professional musical organisations which enhance my teaching skills and enable me to provide students with opportunities for festivals, competitions, and performance events.
Professional journals - Publications to assist me in keeping current on new teaching materials and trends.
Music books and CDs - Materials purchased by me to keep costs low for students.
Property taxes, self-employment taxes, insurance, business licenses, pension - Tuition helps cover the increased living costs of being a self-employed teacher.
Continuing education - Lessons and classes that keep me current on methods and techniques
Book and music club memberships - This enables many discounts to be passed to students.