Post by p.e.r.i.o.d.i.c.
Can anyone tell me what percentage of
JS Bach's total compositional output does his keyboard
music comprise? Roughly, of course.
In terms of length, the easiest way to make such an estimate is looking at
the number of CDs in complete editions.
For instance, the Brilliant Classics edition comprises 160 CDs overall. 97
of those have vocal works, 40 solo keyboard (organ and harpsichord), and 23
other instrumental works. Among that last category there is of course
keyboard music too (the harpsichord concertos, and the sonatas with
harpsichord obbligato). So roughly, a bit over a quarter of Bach's
surviving music is for the keyboard.