The melody of These Four Walls by Miley Cyrus runs 261 notes across 44 bars, 2:59 long in Db at 67 beats per minute. The tab sits low on the neck, mostly under the fourth fret, one note at a time — no chords to barre and no strumming pattern to keep up with. A piano backing track plays the chords and bass underneath, so the line you are learning sounds like the record even at half speed.
Prefer to strum and sing it instead? These Four Walls chords and lyrics.