Praeludium Nr. 1 in F minor, BWV 939
from Kleine Prludien

Composer: Johann Sebastian Bach (16851750)

Introduction

The Praeludium Nr. 1 in F minor, BWV 939, is part of the collection known as the Kleine Prludien (Little Preludes), initially attributed to Johann Sebastian Bach but likely composed either by Bach himself or by his pupils. These small preludes serve as studies rather than concert pieces, designed to develop keyboard technique and musicality. The BWV 939 is an intriguing and expressive composition, revealing Bachs characteristic contrapuntal style within a modest framework.

The Kleine Prludien Collection

The Kleine Prludien (BWV 933938, 939, and sometimes extended further) are a set of short keyboard pieces compiled under Bachs name, possibly assembled from various manuscripts. Unlike Bachs larger preludes and fugues found in the Well-Tempered Clavier, these works are simpler and intended for pedagogical use. They act as natural introductions to the study of Baroque keyboard music for beginners and intermediates alike.

BWV 939 was once included in some editions of these small preludes, though its authorship is less certain than others, with stylistic traits hinting it could either be by Bachs hand or one of his students. Nevertheless, it provides invaluable insight into Bachian musical language for students of the keyboard.

Musical Characteristics of Praeludium Nr. 1 in F minor

The Praeludium Nr. 1 in F minor is a brief, yet expressive piece that balances lyricism and contrapuntal texture. Composed in a minor key, the prelude conjures a somber and contemplative mood, typical of many Baroque minor-key preludes.

This prelude is structured around a flowing, continuous movement where voices interweave skillfully. It is not a prelude and fugue pairing like many of Bach's larger works, but stands alone as a small, self-contained composition.

The texture is primarily imitative, with the right hand often initiating motifs answered or complemented by the left hand. Such voice-leading reflects Bachs mastery in counterpoint, even within concise pieces. The rhythmic drive and harmonic progression maintain momentum while navigating through rich harmonic minor sonorities.

Structure and Form

The piece opens with an evocative motif in the right hand, shortly echoed by the bass voice, setting a dialogical tone. The prelude unfolds through a series of imitative entries and scalar runs, characteristic of Bachs keyboard writing.

While relatively short (typically around one to two minutes in performance), the work is impeccably balanced between clarity and expressiveness, demonstrating Bachs skill at creating depth within economy of material.

The form could be described as free and improvisatory, in line with the Baroque prelude tradition, though it follows harmonic patterns grounded in the minor tonality, progressing through modulations before resolving firmly back to F minor.

Historical Context

Bachs smaller preludes were part of a tradition of keyboard teaching that flourished in the late 17th and early 18th centuries. These pieces were often used by students to hone finger technique, explore ornamentation, and study contrapuntal writing.

The Kleine Prludien circulated in manuscript collections at Leipzig and elsewhere, serving as supplementary material alongside Bachs more formal works such as the The Well-Tempered Clavier.

BWV 939s exact date of composition is uncertain, but it reflects stylistic elements consistent with the early 18th century, possibly written during Bach's years in Weimar or Leipzig or as part of teaching materials compiled later.

Performance Considerations

When performing BWV 939, it is important to bring out the contrapuntal lines distinctly, maintaining clarity between the voices. Despite its brevity, the prelude demands expressive control balancing the emotional weight of the F minor tonality with the forward propulsion of the rhythm.

Articulation should emphasize the imitative character, with note lengths and dynamics shaping phrases naturally. Though ornamentation is often sparing in smaller preludes, performers may consider tasteful trills or mordents, following Baroque performance practice.

Historically informed performances often use a harpsichord or clavichord, but the piece also adapts well to modern piano, where legato and dynamic shading can enhance the lyrical quality.

Listening and Further Study

Listening to various interpretations of BWV 939 can deepen appreciation for its subtleties. Renowned keyboardists such as Gustav Leonhardt and Andrs Schiff have recorded selections from the Kleine Prludien, illuminating different facets of the music.

For musicians interested in studying the score, several editions are available, including modern scholarly publications. The piece is often used in teaching anthologies for early keyboard students keen to explore Bachs style beyond the Well-Tempered Clavier.

Conclusion

The Praeludium Nr. 1 in F minor, BWV 939, though brief and modest, offers a window into Johann Sebastian Bachs pedagogical approach and his ability to craft expressive, contrapuntal music on a small scale. Whether played as a study piece or a concert curiosity, its haunting minor key and intricate interweaving voices remain deeply captivating and reveal the timeless artistry of Bachs keyboard oeuvre.

Music is an agreeable harmony for the honor of God and the permissible delights of the soul. Johann Sebastian Bach

References and Further Reading

• Bach Cantatas Website BWV 939 details
• IMSLP Kleine Prludien Scores
• David Schulenberg, The Keyboard Music of J.S. Bach, Routledge, 2006.
• Peter Williams, The Life of Bach, Cambridge University Press, 2007.