This book is for all songwriters, pianists, singers, musicians, music producers and music teachers wanting to learn how to play by ear on the piano. In Part 1 you will learn STEP by STEP how to add harmony to the tune Twinkle Twinkle Little Star using basic 3-4 note triads and 7th chords that are used in pop and country music progressing to 5-7 note jazz chords using 9ths, 11ths and 13ths. You will learn how to voice these chords...