I agree with jancivil. Fully. From what you (the op) wrote and what you asked about the video you linked, I think that it's not about memorizing the circle of fifths, that's going to help you over your sticking point. I think that you might lack in the motor skills needed for fluent improvisation. You probably need to concentrate too much on what you do with your hands to be able to concentrate to the music itself. Reading theory will benefit you of course, but there will be a limit set by your motor ability. And that is something you can improve only by practicing. Human brains need probably something like 10 000h of repetitive and systematic practice before the cerebellum is even close to it's full potential of handling complex motor activities like playing piano or tennis or golf or doing gymnastics etc. And when I say full potential, I actually lie. From neuroscience we know that brains have no absolute maximum capacity. Only that after a certain point you need to put in progressively more effort and end up getting smaller gains, in what ever your trying to learn. But with complex tasks such as playing an instrument you can practice 1-2 hours per day (every day) for years and still continue to improve appreciably.jancivil wrote:Yeah, that reading about it hasn't done the trick. As I have said too many times, learn some songs, get ahold of melodies in the world of music and find out in the experience of it and things may dawn on you.
you're in a kind of vacuum, what you are doing is relying on reading words about something that you have to find out by doing. You have no business writing yet.
So, I have no quick tricks to offer. What I did (and still do), was to play again and again songs I love, and then start to improvise using those songs as a kind of a template. Making subtle changes here and there and having just fun time. I took lessons of course, starting at age of 5 or 6. And in my early teens I took guitar lessons too for about three years. Still I'm by no means even an average piano player or musician. But I'm able to have fun without constantly needing to concentrate what I do with my fingers. I can jam and make changes and just go with the flow. Jamming and having just fun is, for me at least, the single best way to create new melodies and music.
If I may add, I'd say that learning songs from very different genres is probably a good idea. I play my self about everything. This will step by step widen your reservoir of skills and tricks typical to different styles of music.
Practice is so crucial, that in July I ended up unplugging my music workstation computer and I've yet to plug it on. I chose to force myself to play with a simple stage keyboard for a couple of months. Not that I hope at my age any great improvements.
P.S. Sorry about my English, if it seems somehow clumsy or impolite. I'm from Finland and my native language is about as far from English, as it is possible for two language to be apart.