I practice and rehearse using the BK7m as a drum machine (when I can't get a drummer). When using a drummer I use my Alexis DM10 Pro (except with my favorite drummer, who insists on bringing his own scaled-down acoustic set). I use pedals for slow tunes and LH bass on up-tempo tunes (arthritic knees). I only play organ but do occasionally use piano and brass from the VP770 mounted on top of my organ (KeyB Duo Mk111). On real gigs, I have only used organ (organ trio/quartet format).

As far as Arrangers go, whatever works best for you and what you feel most comfortable with. IN MY OPINION, styles CANNOT be tweaked to be made to NOT sound like ....styles. For that reason, I tend to lean towards Fran's position of using midi files (to play over) instead. The problem with that (IMO) is that unless the midi files are SPECIFICALLY DESIGNED to be played over (not just deleting the melody track), it's still going to sound a little 'cheezy'. That's because YOU have to respond to it rather than it responding to you (as with live players).

I think we all (well, most of us) agree that the most optimal playing experience is playing with other live players. Sadly, given the current economic clime, that is not always possible. For me (and ME ALONE), if I'm paying, I only want to see 'live' music. I don't even like seeing big stars performing to 'taped' backgrounds (although that is often the case). It's like the 'business' of music is more important than the 'art' of music. JMO.

chas
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"Faith means not wanting to know what is true." [Nietzsche]