Bach's B minor is by no means a somber key; despite being a minor key, it can even evoke a sense of joy. The B minor Inventions and Sinfonias also exhibit a dance-like quality. This Prelude, too, is a rhythmic and sprightly piece. For instance, if one were to play this entire piece legato, the atmosphere would certainly change. This is not necessarily an incorrect approach.

From this point onward, it becomes a matter of individual interpretation, but the author would personally render the eighth notes with a light staccato, shaping the piece into a rhythmic composition.

Key Modulations

Now, in this Prelude, the theme appears through modulations to the following keys:

• B minor (m. 1)
• D major (m. 9)
• E minor (m. 13)
• F-sharp minor (m. 21)

Performers should not play all four of these keys in the same manner. Try to imbue each of the four keys with a distinct character. For example, which key might correspond to each of the following four characteristics?

• Gentleness
• Mysteriousness
• Severity
• Joyfulness

It is not strictly necessary to adhere to these four specific characteristics, as they are merely examples. However, it is crucial to impart different atmospheres in this way, varying the dynamics and tone quality. Be careful not to play everything uniformly.