They feel you are a part of them. Voice modulation is basically you got to understand there's a pitch, there's loudness in the voice. If you understand these two things, there's a scale. So the best way to learn the scale is to go to understand what Sare Gamma Padhani Sals is all about. To learn about it, you can download an app called Tanpura and daily you can sing with this with the frequency or the pitch of this app