Question Rhythm game question

Hi,
I want to ask how to make the "Drag Note" to create a path and then when the "ball" object overlap the circle of the note, the path of the "Drag Note" will disappear while the "ball" object is following the path. And also the Hold note to make the length of the "Hold Note" starts to disappear when the "ball" object is overlapping the circle
Note: the "Hold Note" is the green color note
The "Drag Note" is the blue color note.
Thank You
https://www.bilibili.com/video/BV1mZ4y1s7Ju/