Johann Sebastian Bach (1685-1750) wrote the Goldberg Variations late in his career, when he was already master of every compositional technique available to him. The work stands as perhaps the ultimate keyboard cycle: 30 variations on a single aria, exploring fugal writing, dance forms, canons, and pure virtuosity across the full range of the harpsichord. Bach's ability to generate endless invention from a modest theme remains unmatched in Western music.
The Quodlibet that concludes the work is Bach's final joke on the theme. Rather than another formal variation, he lets the music dissolve into a medley of popular German folksongs and street tunes, layered together in contrapuntal fashion. It's both a technical marvel and a moment of pure pleasure, reminding us that beneath all Bach's contrapuntal ingenuity lies a genuine love of music itself.
