Instead of hiding the link to the FB page on a "links" page, use the "Find us on Facebook" button on the home page (and whatever else gets the most visits)
Is your primary goal to promote the band or sell stuff from clickbank? If you're promoting the band, get the clickbank ads off the home page - they'll distract your visitors before they have a chance to learn about the band.
If you want to promote the guitar teacher ebook, dedicate a page to "getting started teaching guitar", with a few paragraphs from your brother telling how he got started, what he enjoys about it, what's good and what's bad, and how the book helped him out. Ditto for selling music online. Link to those pages from some enticing link text.