I used a site called playlist.com to generate a music player for my page. I can tell that other DK members are generating their music players other ways, so you will probably get a few different answers. There is no fee to use playlist.com. Once you create a login, you can create as many playlists as you wish.
Use the search feature to look up specific songs/artists and then add them to your playlists (the database of songs is limited though). Click on the playlist you wish to add to your DK profile page. Once you open the playlist page, use the "generate code" feature under "share this playlist" (on the right side of the page) to generate the html code that will allow you to embed the player on your DK profile. Before you generate the code, you can select to have your player play in shuffle mode or sequential, auto start when someone opens your page, and the color of your player. Once you make your choices, generate the code. Highlight and copy the code. On your DK profile page, find the "Text" section in the center of your page and click "edit". Paste the code into the box and click "save". Your player should appear. If you update songs for the playlist on playlist.com, the player on your DK page will automatically be updated with your new songs.