I really enjoyed my recent conversation with Jane Gingerich, head of music at Southwood Secondary School where we examined music education then and now, leveraging technology and change. I think you will find the perspectives interesting.
Interview
Examples of theory instructional videos
~Mark
~ Mark's Musings ~ blog.markwcarbone.ca 
Thank you for your interview with such a passionate teacher and department head. It is obvious she has embraced these changes and continues to enhance her program! Wow, how the music classroom has evolved!