That's exactly correct. It shouldn't take long for a couple musicians to figure out that they're playing on each other's notes. It's real simple for a keyboard player to play block chords in that middle C range and have them lost - or worse yet, muddied up - with the rhythm guitarist. That's why I originally said playing in a band permits you to "spread out your chords." I find that when playing WITH the band I predominantly rely on piano and organ sounds. I use the others for color. But what I also do is play play up or an octave so that I can be heard (how often have you seen those B3 players screaming at the top of the register). I also find that drawbars can give me harmonics that cut through even at lower volums. Strings are famous for getting lost, especially in the middle registers, so percussive sounds like piano and organ IMO work best.