Almost completed 30 day program. Picked up music(theory) and this course 6 weeks ago. I am 49 years old, and have never studied or thought about learning piano until now, Tim’s style of teaching the number systems allow me to recognize intervals(majors and minors) so much easier. I am on lesson 10 on 30 day program;the complimentary one, and i am begining to recognize and see/hear how they(notes;chords) merge, flow and which numbers (notes) do not do so well together esp. major -minor collisions. Just started the course, can not wait to see-hear what lie ahead. Get the course if you really want an overall understanding of not just the piano, more important the music. Good Job