How to vary organ stops (and which pipe organ to use)
I do use MuseScore from time to time to lay out choral pieces on separate staves for better legibility so haven't really stretched the capabilities much.
However, I now want to notate a well known albeit fairly short piece of organ music in MuseScore 3, and need some help. It is help which may well be hidden amongst the complexities of some existing forum posts I've seen, but I can't seem to get my head around the solution, so hope that someone will provide a simplified response to an enthusiastic amateur like me!
So I start out by adding the Pipe Organ instrument to an empty score, and that gives me a sensible system of two staves for upper/lower manuals and a third for pedals. So far so good but, as with any organ piece, I now want to attach different stops to the three staves. In my case, the piece starts with upper manual (Swell = Gambe + Voix celeste), lower manual (Great = Bourdon 8' + Principal 8'). Additionally, it is not untypical for the stops to change during the piece, and they do so a little in this one too.
The next thing I realised was that, to get a range of sampled organ stops (like the ones mentioned above), I need to load a suitable sound font, since the general MuseScore one doesn't include them. That being the case, I installed the Jeux SF2 font into MuseScore and can now see a whole range of organ stops in the 'Patch' dropdown of the Mixer view. However, this is where I'm stymied as to what to do next. So my questions are these:
(1) If I go to Mixer view, I only see one instrument ('Pipe Organ') with one channel capable of being set to one patch at a time. In other words, I can change all three organ staves to the same stop (patch), but cannot set stops differently for individual staves. Does MuseScore let me do this ? If so, how ?
(2) Following on from (1), can I change the stop for one stave only part-way through the music without having to create multiple Pipe Organ instruments for the score ?
(3) Are there alternatives to Jeux ? I notice some folks referring to Aeolus with varying degrees of delight or disappointment (!), but I can see this is commented out in my copy of instruments.xml and wondered how I can get it to work as an alternative to Jeux.
Can anyone help me out ?