Something VERY different from the usual musical posts on this thread. I may have mentioned that I played lead guitar, and sang lead and backing vocals in heavy rock bands. What I didn't mention, was that I also played symphonic music (I played Euphonium), through my Sophomore year of college. Since I wasn't a music major, and was transferring to a major university (the University of Wisconsin), I ceased to play symphonic music after 1984. Nevertheless, I still have a love for symphonic music (and there are times, when I very much miss playing the stuff - though at age 57, unless I can come up with about $5000 for a Euphonium, and am willing to play in some community band, with mediocre musicians [no thanks, I was 1st chair, when I played in symphonic bands], that ain't happening]). I just finished watching the video below. It's from 2016 - a time period, when flash mobs were in vogue, and many symphonies also did the flash mob thing for fun, and for the publicity.
The piece is from Gustav Holst's "The Planets" suite, and is the "Jupiter" movement of the suite. It was performed at the Prudential Center in Boston by the Berklee Contemporary Symphony Orchestra (from the Berklee School of Music - a very well known and respected music school). Like all symphony flash mobs, it starts off with a single solitary instrument (a cello in this case), and builds up to a full symphony, complete with strings, percussion, wind instruments, and a conductor. I found it very moving (the kind of music that brings me to tears - Aaron Copeland's "Fanfare for The Common Man" also does that to me sometimes [I love emotional music]), and I remember playing "The Planets" suite, when I played in the junior college symphony.
Gustav Holst's "The Planets" - "Jupiter"