Song Mode, Artist Mode, Album Mode, and Playlist Mode each behave like tiny search engines. There are no commands to remember. You search them with simple keywords and phrases. You simply say the same kinds of things you would expect to see in the descriptions on the Search Pane on the left side. For example, in Artist Mode you’d expect to see a list of artist names. In Song Mode you’d typically expect to see both artist names and songs. So you can search either or both.