Use those dividers and bars to separate items of interest. Keep like things together on the page. Better to have too little on the page than too much. Keep the size of your pages small. If you have a lot of information to put on a page consider breaking the page up into smaller pages linking them together from each page.
People hate having to sit and wait for a page full of large graphics too load.
If you want music keep the file size small so it will load before the person is ready to leave your page. And always add a button so they can turn off the music if they choose. Their idea of good music might be different than yours. Keep the color scheme the same throughout the page. Choose 2 to 4 basic colors and stick with those colors.