Each letter is a key on the on-screen piano below. Lowercase letters are white keys, capital letters are black keys. Open the piano and press them in order — no sheet music needed.
G G G E-flat · F F F DFour notes, then the same four notes a third lower. That is the most famous motif in Western music, and you can play it in about ten seconds. It is a perfect lesson in rhythm: three short notes and one long one, which is exactly what gives the motif its urgency. Get the rhythm wrong and it sounds like nonsense.
Three short Gs followed by a long E flat, then the same rhythm starting on F and ending on D. In keyboard letters: o o o D, then i i i y.
Three short notes and one long note — often written as a triplet plus a held note. The contrast between short and long is what makes the motif recognisable.