Don't make every page radically different. This tends to confuse people and makes it diffcult for them to find what they came to look for in the first place. Try to keep a consistent color scheme through out all your documents. Too many colors make a web page confusing and hard to navigate. Don't be wordy.
Nobody likes to read pages and pages of text.
Obviously informative pieces will require more text, but when you use text get your point across quickly. MIDI Files Make your MIDI files easy to find. Your web page isn't the place for hide and seek. Make your MIDI files easily available for download. Nobody likes wasting time figuring out how to download the files from your page.