i design them for a living.
Id say before you even worry what the thing is going to look like, think about what it is the purpose of the site should be. If its to drive people to an online shop to buy your music, or perhaps you have some of your music on your site you want people to download, or maybe some mixes - maybe its simple self promotion. This insight will give you your focus for your main homepage. The scond levels should all be consistant "templates" of each other in terms of navigation, footer and header/logo. These should NOT change to ground the userwithin your web environment so they become comfortable moving around.
Id sit down and write a list of key features/sections you have on the site, then id put together some skinless wireframes - that means dfraw a rectangle representing the screen, and then place boxes withiin it that represent differen tcontetn - maybe you ahve a mp3 player streming your tunes, maybe a module to collect email addresses, or maybe somthing focussing on advertising your music - the last thing you should do is work on the look and feel - once you know roughly what the focus and purpose of the site is 0- content is king online, and how you access it/ sign post it and push people to it is the most important part of the site, not how it looks - totally pointless having a 10 page site with every page saying coming soon, or every page looking exactly the same. also keep your content fresh - this will keep you up google, but make the site sticky (users keep returning). Try to never create a deadened on your site, always make availble related content, or "mini" adverts for other sections of your site to pull them through the content.
Design wise - the sky is the limit, though always keep your end user in mind. Although it first appears slick - music on a site , and heavy flash use for the sake of it really should be avoided - if you got to use flash make sure it has a purpose and you have a back up for people without flash - always design for the lowest common denomonator - if your selling your music , do you really want to turn away X% because they dont have flash??
Also navigation is ultra important. Clearly signpost at all time where the user is, using a consitant hierachy. Colour coding is also importantto show what a link is - For consitancies sake make anything that clickable or interactive the saem colour site wide - users will subconsiouncly pick this up , and itll become second nature - Your real mission building a website is deliver the content as easily as possible!
Web design is a difficult one, just about anyone can coble together a web site, but very few can pull it off well. Id also have a look at coding your site with CSS - in the long term itll be easier to change in future, itll make your pages less heavy to download and is a more compliant way of building sites - think about the poor blind people using the internet! Instead of using images - uses inline text where possible - even headers, or messaging that is ontop of a grahpic should be in a <h> tag - but using SIFR, you can now use some slick flash/css to create type in any typeface - a very cool tool!
Lots to think about !
PM me if you have any questions or wish to see some examples of my work.
Oh and excuse my own site

ive not had time to do anything to it, but for what it is - it serves it's purpose!