I've been very familiar with the Brandenburg Concertos for over 50 years, since Brandenburg no 1 was one of my O level set works. I must have been about 14 when I bought all 6 on LP.
I recently watched & listened to a Youtube video of no 4, which is scored two recorders, amongst other things. I'm pretty sure that the recordings I bought in the 1960s had transverse flutes playing the recorder parts: playing on appropriate-period instruments hadn't really caught on at that stage, since it was only very shortly after John Eliot Gardiner conducted a performance of the Monteverdi Vespers at Cambridge, using period instruments as far as he could.
I downloaded the recorder parts for Brandenburg no 4 and I've been playing them. Most of the second (slow) movement is at a speed at which I can play them. It really is like magic suddenly to be able to reproduce something with which I have been so familiar for so long. I'd love to play in an orchestral performance.
Which reminds me of a conversation I had with my brother a few months ago (pre-Covid). He had to curtail the phone call because he was about to drive out to Bishops Castle where he was going to meet a few fellow musicians and spend the afternoon playing his flute in an ensemble. I said how envious I was of him being able to do that, and saying that playing music wth other people was the real thing, whereas being a pianist was more like wanking, a comment he found quite amusing.
Of course, there are works in which the piano takes part in a chamber ensemble, but in general the demands made of the pianist are very strong, and in general such pieces are very difficult.