Ad puellam munere Musarum praeditam: For a girl, endowed with the gift of marvelous harpsichord playing:

ille ego qui fueram crepitantia cymbala mirans
(heu mihi tam longa corde micante mora)
tu quando argutos hymnos modulata eleganter
plectra movere sciens; pectora plena deo!

TRANSLATION

I was the one who listened dumbstruck to the tuneful keys' melody,
--as my heart-oh!-beat the time--
then, when you were deftly measuring clear-voiced songs
skilful at moving the plectrum, divinely inspired heart.