Short story: I have started playing piano about 1.5 years ago. I miss only a few days without practise apart from being ill, on holiday, visiting family etc. I practice like crazy. My wife who actually bought a piano for my birthday present hates this idea now :/
But piano did become a part of my life :) My interest and hunger of understanding this instrument and music itself is growing. Unfortunately I thought just by listening I could become better and better. However, the more I listen the less I know and it's getting a little bit frustrating. I listen a lot of classics, classical music, above of all Chopin took me completely. Surprisingly to me (never thought it would happen) jazz also became intriguing along with R & B: I really like Stevie Wonder and Frank Sinatra etc. and before I knew them only because they were just famous.
I feel like without proper help I won't be able to fully understand the theory, such as the chord progressions, music harmony, scales etc. I'd really like to be able to analyse pieces. I know some basics like tonic, subdominants, and dominants, tonical chords in different keys, cadence of different types but it still not enough to understand more complex pieces and songs!
Because of that, please, could someone recommend any good book(s) to help me to better understand theory and harmony of music? I really feel like I am ready :p. I know it sounds crazy and perhaps the answer is "it comes with time" but I want to facilitate this progress if I can :) It is how piano is changing me. A few years ago I would not even think of things like jazz .... :)