One question I’m often asked is whether I play with an orchestra, or, if the questioner is more aware of music scenes and genres, if I play with a group or band. I find it interesting that there seems a lot of subtle expectation or even social pressure on musicians to join forces, the modern symphony orchestra with choir I suppose being the ultimate manifestation of this. In classical music, performers are rarely truly solo – pianists and organists being the only ones to regularly perform unaccompanied.
In Scottish and Irish music I see it a lot as well, though to a lesser extent – groups are rarely more than 4 or 5 strong, much smaller than a symphony orchestra. But it’s fairly uncommon to find recordings or professional performances of unaccompanied singers or fiddle players. I think the more high profile and professional the gig, the more expectation there is of having other people performing at the same time.