Bach again takes the word "Trinity" literally and constructs a scintillating trio. The sixteenth-note accompanimental pattern derives from the chorale, but then the chorale appears in dotted quarters, two phrases on the lower manual, two phrases on the upper manual; a phrase on the upper, another on the lower, and it finally appears in the pedal, echoed by the upper manual. The registration never changes, but great variety occurs due to Bach's cleverness.

Samples from Grace Lutheran Casavant recorded by Brett Milan.