equipment break in period

I just bought a used Cary SLP-98 F1 and a used Cary 120s MKII (both with new unused tubes)
I have all used AudioQuest Colorado interconnects.

During the break-in period of approx 100 hours, do I need to be playing music similar to what I will be listening too?
Does the volume make a difference?
Can I turn off the equipment at night and "continue" the next day or must I leave everything "on" continuously?

Any help / thoughts will be greatly appreciated.
Thanks in advance.
Bob