Some tips for playing jazz music on the piano
1. Assuming that you already know enough about the basic theory of jazz, you must first learn the fifteen essential musical scales (there are twelve different sound scales, but in theory, they are those of Si, C flat, F sharp, B flat and C sustained those that are on a separate scale). Learning all the scales would be a great help to learn how to play the piano in jazz mode or improve your technique.
2. Make sure you know how to read music and that you can play something basic, even if it is of the jazz genre. The first step in your work will be to train your ear.
3. If you wish, buy a songbook from one of the best musicians: Cole Porter, Gershwin, etc. Make sure that the chords and guitar tabs are written on top of the piano melody line, such as ?? Dbm7 ??.
4. Learn the basic piano chords in: seventh major formed by the tonic, the 3rd, the 5th and the 7th, the chord in the seventh minor formed by the tonic, the 3rd flat, the 5th and the 7th, the dominant chord with seventh formed by the tonic, the 3rd, the 5th and the 7th flat, the diminished middle chord formed by the tonic, the 3rd flat, the 5th flat and the 7th flat, and finally the diminished chord formed by the tonic, the 3rd flat, the 5th flat and the 7th flat. Transport each of them to each key. So, for example, to play Do7 (seventh dominant in C) you will have to play C, M, S, and B flat. To decrease the chord, you will have to play, d, E flat, and flat. You will need to know these theoretical concepts very well in order to be able to see a chord symbol in a score and be able to play it on the piano without looking at it.
5. To reward your work, momentarily put aside the songbook or book of scores. Think of a song you like and listen to the melody line with your right hand with the appropriate chords in your left hand. This way you will be playing a song without reading it. This may require some practice in some people. Here https://www.freejazzlessons.com/ you will find many tips regarding Jazz piano.
6. It probably sounds horrible, but keep practicing enough until it gets better. You can also go back and see how the chords sound and if they do it in a way that sounds good or “weird” in your ear.
7. The next step is to learn to make inverted chords: learn to play DoM7 as (do, my, sun and yes), (my, sun, yes and do), (sun, yes, do, mi) and (yes, do, my, sun). Learn those four positions for each chord, but you can only play it after knowing what each chord means and having step four of this guide well mastered. Do not strain your mind; just practice.
8. Learn the pentatonic scale of your favorite key.
9. Add a couple of notes to a song that you feel comfortable playing with. Then add some others and take out some of the originals. This is an elemental base of improvisation on the keyboard.
10. Learn the blues scale of that same key and mix it.
11. Observe the chord sequence of the song you are playing and try to move the note from one song to another.
12. Learn the progression: Tonic, first, sixth, second, fifth and tonic. You can also learn the traditional substitution and the progression of fifths. Play the same song in different keys.
13. When you are ready, learn the chromatic and diatonic harmonies and different scales and modes. Also, listen to different kinds of music from different musical periods and any other type in which you can get different ideas of harmony and melody.