Here is a summary of the characters' upcoming schedules and meetings:

1. Peter:

   • 2025-10-21 13:00 @ library café: Coffee catch up and AI project collaboration discussion with Caroline.
   • 2025-10-21 14:00 @ library café: AI-music fusion brainstorming meeting (additional to the quadruple date at the park).

2. Caroline:

   • 2025-10-21 13:00 @ library café: Coffee catch up and AI project collaboration discussion with Peter.
   • 2025-10-23 14:00 @ cafe: Discuss musical collaborations details with Samantha.

3. Samantha:

   • 2025-10-21 13:00 near the market (cafe): Meeting with Noor to discuss AI project and musical collaborations.

4. Diego, Leo, Noor, Andy, and others not mentioned in this summary have their own individual schedules that were established earlier in the conversation.