Need theme suggestions

I’m making a site for a deceased composer of classical music and there are so many commercial music themes out there it’s hard do find the one we need. Does anyone has a suggestion?

We don’t have many pictures of the composer so the images we use will be nature pictures that harmonize with his music. Many of the themes I’ve looked at are very visual, with cool photos from concerts etc.

Our requests (what we hope for):
– responsive and html5
– a post type designed for songs (with the music file, information about the composition and the recording, and a picture)
– a music slider (like an image slider) in the top part below the menu, “songs” that will continue to play if the visitor go to another page/post on the site
– the top part stays visible on top of the window when scrolling
– three menu positions: contact etc (upper right corner), main menu in top, sub menu below main menu – visible only on certain posts/categories

The site will not be updated very often, but now and then when there are news like new recordings or a concert.

We may use some money to buy a nice theme and plugins rather than using hours coding it myself. I appreciate any suggestions!