Here are my thoughts as have now have had a chance to listen and I think Richard C. accomplished at what he was trying to do was as this was mostly Rush playing live in studio, after listening to the 5.1 it does make you feel like the band is right in the room and this thing ROCKS, you do need to crank this thing as the fidelity is really really good. Wish they had done the sector 5.1's with the same fidelity, then they would have sounded this good as well.
This had me smiling after listening to the whole thing as its such a good album if you are into Rush and I loved it in 1978 and now get to hear even a better version of it in 2018, Wow,wow and another wow.
Isn't it funny how depending on our systems and setup's and obviously our ears(mine are 59 years old and I have lost some of the highs) so after reading some of Gene's and Mike's comment on guitar in center being hot to Mike(he's much younger than me), to me I loved it the guitar soloing in the center sounded awesome to me. It's a interesting choice to do it this way but I think it works as it highlights Alex's playing. Wonder how much influence Alex had on this mix as my gut feel is sin't he the one that is more involved in listening and critiquing the mix but it's all good as everything gels pretty good, the drums sound HUGE, bass playing comes through great and of course the guitar parts are clear as can be.
Here is a excerpt of mixing for Tom Sawyer and Limelight to get idea of how Richard approaches things:
" I grew up listening to Rush, so there was the excitement factor there as well as a deep familiarity with the material. The first thing I did was just listen. I got intimate with the album because I wanted to understand all of the sonic assets and how they were originally fitted together.
Once I acclimated to the music, I would pay attention to the placement of instruments in the stereo field, the position of synths, and the use of reverbs in the original mix; and then, more or less, I would reverse-engineer it into 5.1, with attention to motion and placement.
Mixing in 5.1 is about very subtle adjustments to add a sense of space. I’ll have things that take up the entire sound field, some pieces that are subtly placed, and then some elements with extreme placement. The combination of them all works together to make an interesting album that pays tribute to the original."