To the the pro it might concern: I am a beginner. I started mid April of this year. I am 43 years old. I don't know much, but I think the key to "tone," "groove," and "rhythm," to my ear while playing with my fingers is . Dynamics, by which I mean: force of attack, vibrato, etc: the volume and sound of each note in succession. Even playing a favorite song can turn into finger exercises (every note is there, but), or concentrate on what I'm calling the dynamics of the progression of notes and . I don't even know if any of this makes musical sense, but I'd like to learn more about what I'm discovering Are there exercises from the elders that can help me develop dynamic dexterity? thanks vets, f n o r d !