OnSong lets you project lyrics or display chord charts on stage using external video. You can connect your iPad, iPhone or iPod touch to a video using wired adapters, or wirelessly via AirPlay.
Wired Adapter
All iOS/iPadOS devices are capable of output video via the Lightning or USB-C port on the device. In most cases you'll need an adapter. You'll want to determine what video format you need such as VGA or HDMI and then make sure you get the adapter that connects to the port on your device.
Wireless with AirPlay
Going wireless with video lets you use OnSong on stage for your chord charts while lyrics and video are sent to the projector, HDTV, or other video device without running wires. The easiest way to do this is to use an AppleTV or AirPlay-compatible device.