Rachel Keber- YouTube

Smile and Learn https://www.youtube.com/channel/UCxoDMG0tvaYO5Xobvtqw5nw good for elementary students

Music Express Magazine https://www.youtube.com/channel/UCy6k3iWYxFWYKXEuXxfCsMw has lots of videos on music and different aspects of it

Prodigies Music Lesson https://www.youtube.com/channel/UCR_6C8MGPmasS-4QMKclRGw hands on music learning