joni not being able to play guitar anymore

[Aerchak]

Someone wrote yesterday (sorry I cannot not recall who it was) that Joni is 
unable to play guitar any more.  I have not heard this so was wondering if 
anyone else knew anything  about it.  I can see how painting might require a 
different amount of fine motor dexterity than guitar ( I think) so she can 
still do that. The original writer had pondered that.  I am curious about 
this.