Thank you so much for this encouragement. The whole music investigation was a side-project, compared to my main efforts on Pingtype (a Chinese learning site).

Thank you so much for this encouragement. The whole music investigation was a side-project, compared to my main efforts on Pingtype (a Chinese learning site). https://pingtype.github.io https://pingtype.github.io I got interested because my friends at the KHOP prayer room gave me the song sheets in PDF format. They have the chords written, and the key on the top right. I thought it would be interesting to figure out which songs go well together so I could make some playlists. Even though I can't play music, I listen a LOT - all day in the office, and while I bike to work. The fact this side project got more upvotes than my language-learning interests, and your encouragement that the data might be useful, is a sign to me that I should keep on with this and maybe learn to play. There's a piano in the house I rent, but I don't know what to do with it. It seems like now might be a good time to start learning.