Go to the Music app on Apple TV.
Navigate to Search at the top of the screen.
Enter what you’re searching for (such as a song title or lyric).
Tip: When you want to search, simply describe what you're looking for using natural language, such as “hit songs from movies” or “nostalgic songs from the ‘90s.”
Do any of the following:
Navigate down to a suggested search term, then select it to search for that term.
Navigate down to the Top Hits section, then select an item to play it or view more information.
To limit your search to items in your library, navigate to Your Library under the onscreen keyboard.
Siri: Press and hold on your remote, then ask Siri to play a specific song, album, artist, or genre.