Celebrating the pipe organ, the King of Instruments
February 26, 2007
When looking at specifications, the mixture is described as “derived”. Does this mean that they essentially cobble together the sound from other ranks of pipes otherwise assigned?
That’s right. This gives the functional glitteer of upperwork, but without the ensemble quality (because of different scaling and voicing parameters) of a purpose-built mixture.
In some cases (and acoutics) this derivation can be quite effective, but often it is simply a cost-conscious make-do.