The best place to start learning anything is to take it from the top! This article reviews the OnSong interface to point you in the right direction. So to get started, find and open OnSong from your device's home screen and once the launch screen disappears, you'll be presented with the OnSong user interface.
The Statusbar
OK, this isn't really part of the OnSong interface. It's the narrow strip at the top of the screen that shows the clock and your WiFi connection. We just mention it here because OnSong does have some control over that bar. For instance, you can hide the menubar which also hides the status bar for a full-screen mode.
The Menubar
This is where you interact with your library and the currently viewed song. You'll want to check out the menubar section to learn about each of these icons and what they do.
The Song Viewer
It's no surprise that we've saved the biggest part of the screen for what's important, your music! The song viewer will display your text-based chord charts through OnSong's rendering engine as well as let you interact with your music.
The Live Bar
Tucked away in the lower right corner is the live bar. This lets you trigger actions like the metronome, audio playback, and autoscroll with large buttons.
Conclusion
That's OnSong from the 30,000-foot view. Dig into the other sections of the Getting Started guide to learn more about each of these functions.