Yes, of course, Orpheus is a chamber orchestra. However, in this case……
Note that Prokofiev’s “Classical Symphony” is scored for double winds (two flutes, two oboes, two clarinets, two bassoons), two horns, two trumpets, timpani and strings. They kept the number of strings to a minimum, but otherwise pretty much a full size orchestra by most standards.
“Romeo and Juliet”. One of my very favorite works and an orchestration tour de force. It features throughout and fairly prominently a tenor saxophone . Unusual for a major orchestral work where typically the use of saxophone, when used at all, is very limited.
An interesting factoid which I think may have significance and goes to the point of your quoted historical “Notes” is the fact Prokofiev borrowed (reused) some of his own music from his “Classical Symphony”for use in the later score of “Romeo”. In a sense, one could say that it ties together the moves from Russia to America and then back to Russia.
Quiz: what is that borrowed music that can be heard in both works? Hint: it is not one of the movements that you posted, but is one of the movements in the link below.
You posted a fine performance, but as far as I’m concerned no one understands this music like the great Russian conductors and great Russian orchestras. This is my favorite recording of “Romeo”:
https://youtube.com/playlist?list=OLAK5uy_nbUBb_5tVFMfsoMmxEae3BW1TD3ktdigcBtw, the link above is highlights from the recording of the complete ballet by Gergiev/Kirov. Couldn’t find the complete on YouTube.