Don’t listen to music that is degrading. “Music can, by its tempo . . . dull the spiritual sensitivity of men (and women). Young people, you cannot afford to fill your minds with this unworthy, hard music of our day.” 
To study rhythm is to study all of music. Rhythm both organizes and is itself organized by all the elements which create and shape music processes. 
When the musics from all cultures of the world are considered, it is rhythm that stands out as most fundamental. Rhythm is the organizer and energizer.