All of your examples are not recommended if you meant you are studying how to play drums.

I am a student of the Drum and blah blah blah course…” Describe the situation with “I am enrolled in a drum lesson/course”

As a determiner: used to emphasize a lack of restriction in referring to any thing or amount, no matter what” Based on

this definition(from a dictionary), should be used on things/amount. What is the proper use for the word “kind” and not just “men”?

What is someone/boy doing right? Another example is “What whatever people/people are doing”. In a culture where “whatever” pertains to the word “doing”, not

in “people/person/boy”.