Using an HDMI cable, you can very easily display your digital sheet music from your iPhone, iPad or iPod Touch onto a large external screen. This can be very handy if your screen is a bit too small, if you want to show a score to a classroom, use a large screen for conducting, etc.
The Newzik App has been optimized for external display: when your device is connected via HDMI, all features of the App remain available: annotations, page turning with a Bluetooth pedal, etc.
You can either use your external screen as a "mirror" of the App, or use the "custom display" setting to only show the active part, in a double-page format. This setting can be found in the Home Page, in the General settings of the App, in the General section.
Note: with an Apple TV, you can even connect your device to an external screen remotely!