In the early 1700s, Johann Sebastian Bach did something few, if any, composers had ever done. He composed six suites for the cello — a four stringed instrument that, at the time, was relegated to the role of accompaniment in larger ensembles.
Each suite consists of movements named for various dances, and they all begin with a prelude — an improvisatory movement meant to establish the key of the suite, as well as reoccurring themes and motifs. These suites are all masterpieces in music and considered a rite of passage for cellists to study and master.
But there’s one movement in particular, the Prelude in G Major, that has taken on a life of its own in the minds of musicians and music lovers alike.
If you hear the first few measures you’ll likely recognize it. A simple G major arpeggiated chord played expressively on the cello opens a short, but harmonically and melodically rich, 42 measures of music. Bach makes a single instrument sound like a full ensemble. How does he do it?
In this video, renowned cellist Alisa Weilerstein deconstructs the G major prelude and offers insight into how Bach created such a timeless piece of music that musicians have revered for years.