That would be a way of doing the recording yes... And probably the most thorough way of doing it, and the most flexible for the user of the samples, but it's also going to complicate the sampling process quite a bit since it would have to be sampled in at least two takes... I'd rather want all three to be sampled at the same time... this is possible if you have an audio interface with more than just two inputs, but unfortunately I don't right now... but that may come later.
One funny thing about the ensemble effect is, that the effects varies greatly when you start to separate the three modulated signals in the stereo perspective... in fact it destroys that lovely shimmering sound the ensemble does when the three sources is mixed in mono.
Also, the Smallstone Phaser is mono in/out ... there is a lot of options to consider, especialy when sampling the organ... It would be impossible to cover all aspects of this magnificent organ.
One of the problems is that using samples, every modulation frequency that would normaly not change when changing the pitch of a note, WILL change when played back as a sample... Thus, if you want the most flexibility, you'd only sample the tones without any modulation, and let a samplers own effects do it's Wonders... but then Again, it would not sound like the real thing anymore.
So there is a huge tradeoff when trying to mimic an organ like this with authentic samples... That is why sampling every single note gives the best result, as the modulation will keep it's speeds.... but then Again... every sample would be as if every note on the keyboard had it's own ensemble for example... in real life the organ routes all notes through only one ensemble... Again a flaw that will make it sound not quite like the original.
Another problem is that a sample always start over every time you press a key... an analog organ like this has it's oscillators phase vary with each keypress, also not accomplisheable with samples really.
And it gets even worse when you want the Phaser on it, as it's modulation is very pronounced and Again samples would have it's own phaser on every key.
Of course this does not mean that samples sound bad... it would probably give new dimensions to the eminent sound character, and sound Unique anyway, but it will NEVER sound like the real deal.
But my goal is not to make the samples sound like 100% the same...it's more like I want the basic character of the eminent sound in sustained and looped samples to use the sounds in totaly new instruments... like Building Blocks of sound.
If I want the real deal sound... I'd just use the real deal