ITunes and iPod Nano help?

You can create your own play lists within iTunes I believe under the file menu; after creating said play list you can click on the title and change it to say whatever you want 60's, 70's etc.. After you have done that you can just drag and drop the songs you want into their respective play lists. Also in iTunes when your looking at you music where it has the song title and artist in the far right hand column you'll see where it says "genre" you can put whatever you want there and once all your songs have a genre listed you can sort by that in you iPod so it will play/shuffle only songs from a particular genre of music. Though the later is more time consuming it is the way that iTunes itself will sort the music (according to genre) otherwise you can simply create separate play lists. Hope this is what you need!