The melody of All About That Bass by Meghan Trainor runs 579 notes across 66 bars, 3:05 long in A at 135 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? All About That Bass chords and lyrics.