Primary
https://www.ism.org/professional-development/webinars/primary-music-toolkit
https://www.tes.com/resources/search/?&years=GB%7C0%7C5-7%7C&years=GB%7C0%7C7-11%7C&displayCountry=GB&q=music

Secondary
https://www.ism.org/professional-development/resources/as-and-a-level-music
https://www.tes.com/resources/search/?&years=GB%7C0%7C11-14%7C&years=GB%7C0%7C14-16%7C&years=GB%7C0%7C16%2B%7C&displayCountry=GB&q=music
http://www.open.edu/openlearn/education/assessment-secondary-music/content-section-0?active-tab=description-tab
http://www.open.edu/openlearn/education/teaching-secondary-music/content-section-0?active-tab=description-tab
http://www.open.edu/openlearn/education/using-film-music-the-classroom/content-section-0?active-tab=description-tab

Instrumental
https://www.musicmark.org.uk/wcet/
http://www.derek-hasted.co.uk/free/ (Classical Guitar)

Kodaly
http://www.lentylermusicschool.co.uk/downloadable%20resources.html
http://www.dally.org.uk/links-downloads.htm

Resources for numerous possibilities (many are free)
https://www.musicmark.org.uk/events/

BBC Ten Pieces
http://www.bbc.co.uk/programmes/p04pc0j8