It's clear that the LA Philharmonic InsideOUT webpage and mailer is not promoting a rock band.
http://www.laphil.com/tickets/insideout-10th-anniversary-celebrationI want to reiterate that all promotion for this world premier event in LA has dictated that the music is more-so about the ORCHESTRA, CHORAL GROUP and SOLISTS than any traditional thought of a so called rock band that at one time had a configuration of The Mothers at the specific time that the film/record was made. I don't think it is important to place large sums of energy into weather the musicians that accompany the TBA soloists involved is 1 or 8 amplified or loud acoustic instruments.
Pointedly the soloists are many characters that are played by vocalists. The characters in the 13 suites were
Rance Muhammitz, Flo & Eddie, Jeff's Good Conscience, Jeff's Bad Conscience, The Rock & Roll Interviewer and The Girl. How many more characters are in the original score???? Hmmm There could be more or less than what appeared in the movie. Having not read FZs original score I think that it is fair to state that one should not focus on perceptions of the
literal rock performance side that had been seen in the film and heard on the LP. While the story is about what happens with life on the road with a rock band, the original score and the adapted score may not necessarily overtly represent large sums of rock performance in the program.
The Mothers just what they were at the time of the recording of the film/record. In 1970 Frank Zappa was very much in a state of writing for having flexible band sizes. Some getting smaller, so I have no problem having
smaller amplified dynamics instrumentation core to go along with an orchestra and chorale group. Just listen to interviews at the time
Hot Rats was recorded and promoted. Frank was talking about the flexibility of working with various sized ensembles. I have no problem pondering the thought that there will be more characters than had appeared in the 13 suites back in 2000 but that is all guessing. Surely there can also be a number of musicians that play traditional rock and jazz instrumentation but as Gail Zappa had stated the orchestra will be doing more so whatever amount of musicianship that is added to the orchestra and choral group I just don't think Rock Band with a big canon ball splash off the 30 Meter diving platform. My gut feeling is a drummer and some other instrumentation to accent the soloist themes and some other parts.
While the orchestra, deservedly so, will be doing more I still think there is room for some instrumentation within the soloist portion of the program. I expect some of these may very well be some well known musicians. I am just not thinking of a rock band that rocks out to
Magic Fingers with a loud guitar solo happening. If fans want to analyse the movie and album they can do so. They can get all analytical on each and every so called "rock number" in the movie and 2LP and how that will play out. They can figure out the instrumentation and get down with the imagination of the imaginer. Have fun...