This is the Master Dashboard Screen. Here you’ll find the “list at a glance” of Songs, Composers, Tempos, Keys, Recroding Artists, Lyrics present, etc.
There are buttons for launching cammnads such as sorting, tagging specific songs, playing audio and more. 

Chart view is where you’ll be able to view the lead sheet for a song.
Each song in Chart View can display 1 to 3 pages of a lead sheet. Tempo, Key and Transposition are shown at the top of the screen as is a button for launching the recording by the indicated artist.