The WTF Bach Podcast

A few months back I had the pleasure of interviewing Ton Koopman. If you’re at home in the Baroque, you’re no stranger to his work. Please enjoy this interview, marking the 100th episode of The WTF Bach Podcast! Thanks for your support, thanks to all those who make this work possible. Here’s looking forward to 100 more!

Topics Covered (Chronologically)

Works of doubtful authenticity (Violin Sonata, BWV 1025)Continuo playing (Figured ...

Listen to the new album here:

https://modernclassicalx.lnk.to/BachCompleteKeyboardWorksVol4PartitasPtOne

Today I’ve released Volume 4 in my “Complete Keyboard Works” of JSB. This album contains three pieces by the master:

Partita no. 1 in B-flat Major, BWV 825Partita no. 2 in c minor, BWV 826Partita no. 3 in a minor, BWV 827

Bach’s Opus One—the six Partitas of Clavier-Übung I—were first issued individually from 1726, with the complete...

Would you object to the comparison of Messiaen and Borges? I see both 20th century giants deeply steeped in the masters of the past, throughly conversant in the antique, and yet they bring something uniquely modern— magical. Borges’ stories have the ability to stun, to make one wonder, or in the case of the story I read today, elicit tears.

After Shakespeare’s Memory, (1983) which I believe is his last published story, I offer my s...

Yep. I based an entire episode on the pun. We study two works not usually heard in the organ repertoire, the Prelude (Fantasy) BWV 569 and the Prelude with Fugue BWV 551, both in a minor. These are not the best known pieces in the repertoire, but they command our attention—especially when you consider that one of them was written when Bach was just 14 years old.

BWV 569, composed around 1708 when Bach was 23, is a single-rhythm expe...

The oldest surviving (ca. 1100) German church melody is centered around Easter and the resurrection: Christ ist erstanden. Luther adapted this into Christ lag in Todesbanden. Both texts culminate in a triumphant “Hallelujah!”

What kind of music could Bach compose for such a joyous word? In every instance, it demands a distinctly exalted treatment.

We discuss the origins of the word Alleluia, and analyze the music when the word appe...

Today, Good Friday 2025, marks 300 years since Bach performed the St. John Passion in Leipzig. … but it started like this:

But wait, I thought the St. John Passion was:

In this episode, beyond outlining the basic revisions between the 1724 and 1725 (and a few other) versions of BWV 245, we’ll study how people heard passion music, the purpose of a passion setting, and how Bach, by changing the opening and closing movements, or swappin...

The organ held a central role in the life of a baroque keyboardist. Not only was an accomplished harpsichordist or clavichordist comfortable playing with their feet, but the art suggests that the repertoire often called for ad libitum pedal additions.

In J.S. Bach’s second collection of chorale prelude for organ, he introduces obligato pedal parts. Below is an image from his Bach’s earliest chorale settings for organ, as preserved ...

A beloved cantata from Bach’s early 20s, the Actus Tragicus anticipates the future of opera more than it foreshadows Bach’s own later cantatas. Albert Schweitzer’s beautiful writing on Bach features heavily in this episode.

Here is the tuning video with chorale in question toward the end of the episode:

WTF Bach is a listener-supported publication. To receive new episodes, to support the work, consider becoming a free or paid subscr...

The bard— not the brook, but don’t worry, this podcast isn’t going to become an English lesson.

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Here is my reading of Shakespeare’s first publication, Venus and Adonis, a poem that is pure music. If I were to list my favorite lines, I might as well copy out half the poem. Just something that pops into my head would be a line like,

“Rain added to a river that i...

UPDATE: One of my astute listeners pointed out that it is in fact Jones’ review of Butler’s work in Music & Letters, and the original work by Butler is this book. Thanks for the correction!

Don’t miss the end of this episode where I play three of Bach’s earlier settings of the same tune, BWVs 700, 701, & 738!

We finish our study of this late masterpiece by reading some scholarship on the two different versions Bach made of his canoni...

Today, as we did in episode 5 of this miniseries, we’ll examine the revisions Bach made from engraving copy to handwritten copy. This is an important view into the composer’s workshop, and unlike clear ameliorations between layers in his other works, the two versions of BWV 769 present a unique challenge in seeking the “best” version.

Changes like this (first beat, alto) are minute, yet fascinating:

(Top: engraving. Bottom: fair copy...

Show me a finale as densely packed with thematic material as this one. Here are the five bars — the only five bars — discussed in today’s episode. You might listen while looking at them:

Notice the finale comes in two stages, first diminution, then stretto. The signature in the final bar is noteworthy (though it should be mentioned that the letters are an addition by the editor.)

And here is a video of the Mandelbrot set fractal, as ...

Have a look at this. This is Bach beginning a canon in inversion. The follower is a 6th below the leader:

(If you can’t see that the shapes are inversions, hold up a mirror — seriously!) Yet here, only a few bars later, the imitation seems to be at a different interval:

The follower is no longer a sixth below, but a third. How rare! And going on, something else:

(We’re looking at the lower two voices in this picture, the quarter notes...

Imagine composing an ornate melody, then stretching it out so it moves twice as slow, and somehow when you layer the stretched version onto the original, they match up beautifully: One shape, two different speeds. This is what Bach has done in this canon (but he also made sure that the consequence of both lines also blends into the harmonic implications of the chorale melody, which must also past through both lines…)

Let’s see what ...

The subject of the last several episodes has been Bach’s canonic variations on a Christmas tune by Martin Luther himself. A major inquiry into this work is its existence in two versions: engraved and handwritten. The published version (for reasons explained in the episode) doesn’t fully solve the canonic lines, as seen here:

Notice how the notes of the bottom line don’t continue after the fifth note!

See two other canons, each with ...

Let’s delve into a third variation from Bach’s 1747 masterpiece, “Some canonic variations on the Christmas song, ‘From Heaven Above’ for the organ with two keyboards and pedal, by J.S. Bach.”

Two versions of this piece exist: the ‘fair copy’ and the ‘publication’ (Stichfassung), which present the variations in a different order. In this episode, we follow the publication, where the canon at the 7th appears as the third variation.

The...

I never knew the authentic version of the world’s most famous canon, having only known arrangements which conceal the fact that the music is indeed a canon in three voices. Here is what the ‘real’ canon looks like:

It continues for over 50 bars as a three voice canon at the unison. In my brief survey of this piece, I found one theory that suggests the 9-year-old J.S. Bach was in attendance at the first performance in history.

While ...

Continuing our mini-series exploring Bach’s canonic variations on the Christmas song, ‘Vom Himmel hoch da komm ich her’ BWV 769, we listen to the second canon: a canon at the perfect fifth.

Here is what the initial shape looks like in the right hand:

So the same shape must be imitated down the perfect fifth. It appears like this in the left hand:

I briefly mention the difference between ‘tonal’ and ‘real’ answers. Although the major...

The first variation in these late variations for organ, is a canon at the octave. The two hands, each on a separate keyboard, play the same shape, one octave apart, while the feet provide the chorale melody. It looks like this:

Those are the first three measures of 18 measures. That’s right: the shape is imitated note for note for 18 bars! If you’re having trouble seeing that the two upper lines are in fact the same melody, one octa...