It can be done either way. You can write a lyric or poem and then fit music to it, or instead you can write a tune and then fit words to it. In either case, adjustments can always be made for better fitting one to the other.
Yes.
Lyrics
W.C. Handy
No, Amy Beach's siblings did not compose music. However, her sister was a talented pianist who gave Amy her first music lessons.
she who?
i, myself, compose piano music. The easiest music to compose would be classical music because all you need to do is appregios
Songwriters can compose words and/or music. If you want to compose better lyrics you might study English; if you want to compose better melodies you might study music. If you want to write devastating protest songs, you might want to study politics. Education takes us to many different places.
no he didn't compose his own music
yes he did compose his own music
I like to compose music.
pianist
There was a 1950 musical of Peter Pan with music and lyrics by Leonard Bernstein. In 1954, there was another version with music by Jule Styne, Mark Charlap, and Trude Rittman, with lyrics by Bette Comden, Adolph Green, Carolyn Leigh, and Mark Charlap. West Side Story is music by Leonard Bernstein, lyrics by Stephen Sondheim.