Friday, July 14, 2017. Here's how the BSO performance detail page describes this evening's concert:
Andris Nelsons opens the weekend on Friday, July 14 at Tanglewood with performances of two pieces written as an homage to French Baroque composer François Couperin, composed nearly 90 years apart: Ravel's Le Tombeau de Couperin and BSO Artist Partner Thomas Adès's Three Studies from Couperin. Also on the program is Haydn's Symphony No. 83, La Poule ("The Hen"), last performed by the BSO in 1990, and Mozart's Piano Concerto No. 21 in C, K.467, featuring Russian pianist Daniil Trifonov.
(Some emphasis added.)
The BSO page also has the usual links to audio previews, program notes and performer bios.
The Adès piece was performed in Symphony Hall in the concerts of April 23-28, 2015. In my review at the time I wrote,
Thomas Adès's orchestration of harpsichord music of Couperin was very successful, in my opinion. One interesting feature was the use of alto and bass flutes. Both are longer than regular flutes, so much so that the tubes are bent back on themselves; and they have a greater diameter than ordinary flutes. They are held like regular flutes, with the player blowing over the mouthpiece on the top section, and the keys [are] on the lower section.You can see links to other reviews if you go back to my post.
Saturday, July 15, 2017, brings only one work, but what a work. Again, the BSO tells us about it on the performance detail page:
(Some emphasis added.)
See the performance detail for the rest of the cast as well as the usual links. The program notes give a synopsis of the action, but not the full libretto. For that you're on your own. I'd suggest searching something like "Rheingold libretto." I'd suggest going for one with German and English side by side if you can find it. The opera concludes with "The Entry of the Gods into Valhalla," which used to be frequently performed as a stand-alone piece. It's top-notch Wagner, IMO.
Sunday, July 16, 2017. We're back to orchestral music, with a world premiere and a couple of "warhorses." The BSO tells us
Closing out the weekend on Sunday, July 16, Andris Nelsons and the BSO are joined by violinist Anne Sophie Mutter for the world premiere of Boston Pops Conductor Laureate John Williams' Markings, for solo violin, strings, and harp. Ms. Mutter also joins the orchestra for Tchaikovsky's Violin Concerto, one of the most popular concertos for the instrument. Berlioz's dazzling Symphonie fantastique completes the program.(Some emphasis added.)
The above quote is from the orchestra's performance detail page, which also has the usual links to background information. I have no idea how the Williams piece will be, but the remaining works are enduringly popular.
You can hear it all over WCRB on the air or on line. Friday and Saturday' shows begin at 8:00 p.m., Eastern Daylight Time, Sunday's at 7:00. I'm looking forward to it.