Hi Fiona,
Thanks for sending this over. I've taken a listen to it and I've imported it to both WavePad and a more in-depth spectral audio editor as well.
I understand that there are some parts wherein it seems that the vibrations (especially for louder and lower notes on the piano) seem to be more apparent, but unfortunately, due to the overall resolution of the audio recording, making surgical adjustments to it would only sound unnatural and would be very obvious.
For this case, I would suggest that you import the file on WavePad and apply these subtle compressor settings just so that sudden volume spikes can be minimized, and there is an overall control in the dynamics.
Applying a subtle effect on the entire thing to generally improve its quality would be better than surgically focusing on a specific part and making the adjustments obvious.
Thanks for sharing such a special recording of your daughter's performance!
