The first phrase of Beethoven's Ode to Joy is a single formula: d = ⌊2.27 + 1.2 sin(π(s + 1)/8) − cos(πs/4)⌋ with s = ⌊x⌋ + ½, played at f = 261.63 · 2ʸ Hz. The tune moves only by scale steps, so two harmonics carry its shape and the floor snaps each beat onto a degree: E E