I don't have one, so I'm giving you some explanations so you can do something with it, and I'm ready to talk with you to refine it if you want:
My presentation text for this Solo + guests is about a meeting with musicians from the region.
Then I'll leave it to you to write a text as you wish, explaining the concept of my solo, which is to have very different guests. Here, and what is particularly dear to my heart, is to share a moment with musicians from the region and to rewrite for them.
Here, it will be a rearrangement of my solo repertoire for musicians who wish to share the evening concert with me after a day of meetings/master classes!
The idea is really for me to play my solo, and for the guest musicians to be on stage with me throughout the concert, without playing all the time. I don't write a whole repertoire, but I invite!
I can't tell you if they will play 1/4h, or 1/2h...