The session that wasn't:
Walking to the session. Pausing to pull me toward somebody's car and tapping on the trunk:"Um, no. We can not go in somebody's car. Please don't tap at it, or you'll set off an alarm and that would probably not be a good thing."
Slowing down and sitting on a bench:
"Yes, I see that you don't want to go to do your session today, and you'd rather we sit outside on a bench."
Still on the bench:
"Yes, I realize I'm frustrating you, but music therapy is what I can offer. I can not take you for a ride, or for an escape, in someone else's car or in my car. I can, however, be your music therapist, and you can come to your session, and we can talk about it in the music."
In front of the Music Room door, but not going in:
"So, okay. You're not going to go into the Music Room."
Pushing past me and heading for the exit:
"I guess you're telling me we're not going to be doing music therapy today, and you'd rather go back to the cottage. Okay then. I'll try again on Wednesday."