Adding a tune into the playlist

The tunes are being added into the active playlist. You see what playlist is currently active in the very upper bar. Here you may also switch between your playlists and chooes the active one.

After choosing the playlist you want to add tunes into, find tunes you want to add to the playlist and click the "+" icon.

Removing a tune from the playlist

In the menu click on the tab "Playlists", from the list of your playlists choose the one you want to remove tunes from anc open it by clicking on it. You emove tunes by clicking the "×" icon in the "Actions" cell.