How do I sync iTunes on my iPad 2 with iTunes on my MBPro?

Two questions:

1. I did connect with cable which eventually gave me the message of a lack of room. Therefore, how do I delete some of the music that is shown when I click on Music icon on my iPad 2?

2. I do not want to sync all of my MBPro with my iPad but only place a few of the music on my MBPro onto my iPad.

Thanks for your response and suggestions and help.

Vernon

I clicked on the link you sent in your reply which refers to a left side on my iPad which does not appear.

Thanks for your response and suggestions.

Vernon

iTunes 12.1.0.50 as much as I can tell since I do have vision problems and the font is so light it's hard for me to read.

Vernon