Early 2018, David uploaded his first educational video to his YouTube channel, "How The Beatles Used Modes". Since then, his channel has been growing at an exciting rate. He achieved his first 100,000 subscribers in November 2019 and has now amassed over 19 million views on his videos and over 200,000 subscribers. David believes that, to learn music theory in a meaningful and useful way, students need real world examples, and that's just what he does, pulling from his love of classic artists such as The Beatles, Radiohead, Bowie and Queen to demonstrate music theory concepts in action. His videos take an"under-the-hood" look at some of the best songs of all time with the aim of gaining a better understanding of what makes them so universally adored and to see what lessons we can learn from the world's greatest songwriters.