Here's a little preview of the first one, which you can do without any special requirements, this one is very easy, as it just goes through a bit of pressing the o button. Although the song is quite repeatetive which can get on some people's nerves.
http://www.youtube.com/?v=eHCdO9bQYwQ
http://www.youtube.com/?v=eHCdO9bQYwQ