Aria from the Goldberg Variations, BWV 988

The theme of Bach's thirty Goldberg Variations: a slow sarabande with a richly ornamented melody over a simple bass. The bass line, not the melody, is what the variations are built on. Learn the melody without ornaments first, then add them one at a time.

Source: Mutopia Project no. 979, typeset by JD Erickson (CC BY-SA 3.0).