Great work. Excellent job.
The lesson plan and student learning objectives are clear and direct. The use of the web literacy helps connect this work to the others in music using the web lit in classroom instruction.
The screencast is great. Your technique and tone are clear and informative. I can only imagine how challenging it must be to give students a guided tour of Noteflight. I would imagine this video might be invaluable to you. One thing...I would edit the description for the video to include info either to this lesson plan...or probably a multimodal tutorial on your hub...or DT&T. A series of text directions and images would support learners.
The rubric is clear and helps identify your learning objectives to students.
Good work. Badge awarded. :)