What template to choose? How to get started?

Hello,
I’m looking for the perfect one page template to post my music stuff on. (i’m working with Wordpress)
Maybe something likes this:

Any good recommandatoins?
Also after i have installed the theme, what’s the next step? Where do i need to go to change the header, change the text, delete sections, add sections, etc. (i’m new to this…) There isn’t a drag-drop possibility?

Thank you!