This article is part of a series:

• Read about the entire Well-Tempered Clavier
• Read about the corresponding fugue to this prelude

Introduction

This first prelude of the Well-Tempered Clavier is made up entirely of arpeggios, or the notes of a chord played separately in a pattern. Each of these arpeggios is repeated, creating a "breathing" feeling. The repetition makes dissonances feel twice as unsettled, and resolutions twice as satisfying. Over 35 bars, the piece explores different keys and registers, turning an extremely simple idea into an utterly beautiful soundscape.

Terms

• Tonic chord: The "home" chord of a key, like the C major chord in the key of C
• Dominant/diminished chords: Two types of unstable chords that lead strongly back to a resolved chord
• Pedal: A single note held or repeated for a long time, usually in the bass
• Cadence: An ending to a piece or section, including melodies and harmonies that create a sense of resolution

Listening Guide