Welcome back to our second part in our series on how to approach the Bach Two Part Inventions. In Part 1 of our lesson we talked about how to understand these pieces as well as the importance of understanding counterpoint when approaching the inventions.
Today we are going to explore Invention #8 – The F major invention. Again, this piece really relies on subject and countersubject for its structure so if you missed the last lesson or you aren’t familiar with the concept of Counterpoint you might want to catch up before you proceed with this lesson.
Let’s start with the first phrase in the piece and separate the subject from the countersubject.
Here is the subject:
And here is the countersubject:
Right away you will be able to spot a difference between the two. You will want to accentuate these differences with the phrasing. To accomplish this I recommend playing the subject staccato and the countersubject legato. This is a great way to delineate the subject from the countersubject and allow them to stand on their own so they don’t meld together.
You should always understand the context in which the piece you are playing was written. In this piece Bach was not writing for the piano. The keyboard instruments during his time didn’t contain sensitivities for dynamics. So, phrasing the parts differently from one-another was an essential component of the performance.
You should play this way through the entire piece and you will separate both the lines clearly and let them stand on their own. When performed correctly it’s truly amazing what type of sound this achieves and it’s even more amazing to think that Bach was developing this effect without the aid of the modern piano. If you were to play everything with the same phrasing the piece would sound fine but it would sound flat and lacking the life that Bach intended.
As you play further into the piece you can utilize dynamics (such as playing piano or forte in different sections). But the phrasing is what’s going to separate the two lines and bring life to the piece and highlight the brilliant counterpoint within.
What makes these pieces great is that you are free to develop phrasing and dynamics on your own and bring unique expression to these pieces. Bach didn’t write dynamic or phrasing markings and it’s not because he didn’t want them. It’s because it’s up to the performer to bring their own unique voice to these works. Have fun with these inventions and experiment; don’t be afraid to try something new!
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