I agree that it's vague. It could mean someone who plays weddings, in bars, jazz.... However, if you want to avoid confusion, you could include a rep list (as I suppose you will do), and a description of his training and previous experiences (as I suppose you will do).
Yes, of course. Bio, repertoire, schedule and other elements usually found on a pianist website will be included. That said, I guess a vague "pianist" will get a strongly declared context with the surrounding text, therefore it will be clear enough.
Before reading this thread, I also didn't know the term "collaborative pianist" and my suspicion is that many of the potential readers of your text would not know it either and would not use it as a keyword.
My thoughts exactly. Making an English version of a website I am certainly considering worldwide audience and not only native speakers.
On the other hand, "pianist" is too vague.
You are right, but pianojerome has a point here - the context created by surrounding text may be descriptive enough to justify this vagueness. I will give some more thoughts to this subject though, we don't need this today nor tomorrow.
Thanks for your help
(I pisz przymiotnik "ang." po ang. wielkÄ… literÄ… :))
