Does the Pianist get invited to rehearsal dinner?

The Pianist is the brides mother's friend, who then changed her mind last minute and opted to only play one song and now we have to hire someone else to do what she was originally going to. Do we invite her to the rehearsal dinner? I feel she just wants to be included. She also just had to host the bridal shower which was so cramped, people couldn't even see the bride and had to stand in a hallway for 2 hours. I feel like she needs to be the center of attention taking away from the bride's mother. How do I politely not invite her to the dinner or would that be in poor taste of me not to?