Do you mean something like this?
To my mind this is starting to get confusing. It is difficult to separate out the trumpet bell from the guitar behind, but I often don’t have the time or the space to “rearrange” everything to avoid situations like this.
I don’t see the “box”, because I know I can, if necessary, crop afterwards, so the primary aim is to ensure that the “box” is large enough to allow for that. What I do sometimes do is to rotate the camera to “fit” the subject…
… for a solo subject and…
… for the sax section. Think of it as following a lead sheet, where the set of photos describes the whole piece of music including the solo or group features. Jazz concerts especially suit this kind of narrative and, in order to appreciate the individual shots, they should be viewed as an “assembly”, rather than trying to get everything into every picture.
But then you still stumble across times when the lighting was unintentionally set up in a way typical of the famous Studio Harcourt style, which despite there being a group, simply invited me to take a couple of portraits in that style…
Which is essentially what I do at jazz concerts.
The D850 has a fairly quiet shutter and it also has a quiet mode; and I never use flash, preferring to shoot at around 10,000 ISO, which is no problem with DeepPRIME in post-processing with PL5.
Fortunately, most of the beginners in our club only use their phones for making calls and taking snaps of family and friends.
Hey, don’t you go putting that precision stuff on me Occasionally I might get it tight in the camera but, more likely, I tend to have to to frame to allow myself the possibility of cropping if necessary. I also tend to delete instantaneously if I can see it went wrong.