Answer
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
In this fatwa:
You are allowed to join the internship provided you get an exception to skip serving haram foods based on religious constraints.
Responding to your question, Sheikh Ahmad Kutty, a senior lecturer and an Islamic scholar at the Islamic Institute of Toronto, Ontario, Canada, states:
You are allowed to join the internship, provided you get an exception to skip serving haram foods based on religious constraints. I’m sure they would be able to accommodate you as they consider freedom of conscience a legitimate ground for allowing exceptions.
As for music, there is no reason to shun it as long as they are clean and free from vulgar themes or messages. However, I’m sure they would not allow playing vulgar music while training kindergarten children.
I would advise you to continue to pray to Allah to open the doors for you and facilitate your tasks. We may do well to remember that Allah has control over all things.
Almighty Allah knows best.