Back to the Data Model.
The Requirement is for a Database for a Church Praise Team.
Events are organised with varying numbers of musicians that play one or more instruments (usually not at the same event).
Here's some information I found by Googling 'Church Praise Team' ...
The Praise Team of the River of Life Church in Eastland, Texas.
A Praise Team Schedule from the Grace Church in Mahomet, Illinois.