title: Create a database to store Playlists of music
body: <p>I'm building an app which need to story a list of Playlists , and each playlist contains many song:</p>
  
  <ul>
  <li>Each playlist can contains songs (ex: Playlist A has song :1,2,3...)</li>
  <li>A song can stay in number of playlists ( ex: song: 1 can stay in Playlist A,B,C...)</li>
  <li>Song only has Id property</li>
  <li>Playlist need properties: Name (this property is distinct so I don't need Id property) , Info, ( and I also need to have a number to count songs in playlist , so I don't know if I need a property "Count" or not ?)</li>
  </ul>
  
  <p>Now I'm trying to create a table which contain list of playlist (which has columns: Name, Info, Count), and for each playlist I create a table (which only contain ONE column: ID (of song))</p>
  
  <p>Above solution's quite stupid, but I don't know if is there any better ?</p>