iTunes 
Create a playlist
You might want to create playlists to suit specific moods, to organize songs with a certain theme, or to group songs you want to burn to a CD.
Playlists you create have this icon 
next to them.
Create a playlist
Choose File > New > Playlist.
Type a name for the playlist.
To add items, drag them to the playlist on the right side of the iTunes window.
When you’re finished adding items, click Done.
Edit a playlist
-
Select the playlist and do any of the following:
Add items: Click Add To
above the playlist, and drag items to the playlist. Click Done.
Change the order of songs: Drag the songs into the order you want. If you can’t drag a song, click the column heading above the numbers.
Remove an item: Select the item and press the Delete key (this does not remove the item from your library or hard disk).
Quickly add an item to a playlist
-
Start dragging the item (or items) you want to add.
A pane with a list of playlists appears on the right.
-
Drag the item to a playlist in the list.
You can also move the pointer over an item, click 
, choose Add To, and click a playlist.
You can also create a Smart Playlist that updates automatically based on rules you choose, or a Genius playlist that includes music in your library that’s similar to the selected song.