Ach wie flüchtig, ach wie nichtig BWV 26

This is one of Bach’s Chorales, scored for SATB, performed on Prent’s Microtonal Slide Bosendorfer. The title means “Ah, how fleeting, ah how insignificant” in English. I broke the piece up into its 39 quarter note length segments, and either play it straight, or backwards and forwards using the Markov Chain Drunkard’s Walk. There are a lot of eighth notes, and in this version they are all discrete notes. I intend to make them have the option of slides in the next version.

The tuning is derived from the 31-limit tonality diamond, with each quarter note segment assigned a scale that makes that chord sound best, including with 6/5 and 5/4 thirds, 3/2 fifths, and 7/4 flatted sevenths. That leaves some harsh notes, as the commas between chords are pronounced. I may go back and make them slide from one chord to another so that they are masked. That’s for another version also.

or download here:
ach #1

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Prent Rodgers

Musician seduced into capitalism.