Some basic rules of lighting orchestras:
1) The basic requirement is to light the music on the music stands with
No Color down light, so that the musicians do not have to strain their eyes to see the music. That usually means straight down washes to provide an even
wash at high
intensity.
2) No light in the eyes of the musicians and/or
conductor. Pay attention to angles of front light so that when a musician is watching the
conductor, there is no glare from front/side or any low angle lighting.
3) If possible, some sort of lighting on the
face of the
conductor so that he/she's
face is visible to the musicians, paying attention to rule number 2. Hi side Box position is useful here, but this light is usually not neccessary of the overall
intensity of the
wash is sufficiant (But is needed for a TV shot of the
conductor from US).
Given the above, what we do for a similar configuration with Wenger shells and ceilings, is to use an
electric DS of the DS
edge of the first ceiling as well as a 2nd
electric between the 2 ceilings. On ea. we use 6-8 S4 Pars with wide lenses (40ft.
stage width), focused straight down and having diffusion to blend the
wash. That's combined with DS Pit overhead PAR64's as well as hi-angle
FOH, also from S4 Pars to top light the DS areas of the pit/playing area.
If I have a chorus on risers US of the
orchestra (typical setup), I will add an additional 6 S4 Pars as a front
wash to light the faces of the chorus, usually from the #1 Elec. Also with diffusion.
My typical focus for the down light S4 Pars on #1 & #2 Elec, is to do a straight down focus, with the beam SL to SR, then an R104 linear diffusion to diffuse US to DS.
I also do a front special with an
iris to light the conductors
face when they turn around to bow, or
address the audience.
I have at times (TV shoot) lit the shell walls with soft shaft vertical washes in alternating colors (Red/Blue/Lavender) to brighten up the shell to reduce contrast. I also put snowflakes on the walls during the
holiday concerts.
Just some thoughts.