A press in the top center of the screen when the toolbar is hidden will bring up the Quick Panel.
The Quick Panel allows you to Start/Stop the Music Player, Start/Stop the recorder, Link the currently playing song to the current PDF file and to lock the page. Once the page is locked, you cannot turn past the current page with a tap. You can still zoom in and out. Use this mode when you want to show someone something on your iPad on the current page without having them accidentally turn a page. You can also turn Set List Mode on and off here. MIDI Send – when off, will disable sending of MIDI messages. Music Picker will allow you to go directly to the music picker window which you can use to play songs. You can also acces the Recently Loaded songs list here as well.