I would like to access music on internal drive volumio insta

I have just installed volumio linux on an old Dell620, to a 80gb sata drive.
And was trying to resize the hard drive to load some music files to the 80gb hdd. I have resized the drive with gparted and it boots OK into volumio, but I can’t see the 64gb spare that I want to put some music on. I have loaded music to 64.93GB partition via windows 10
Perhaps named it wrong its showing as 64.93GB msftdata
And also with regards to volumio is there a way to stay awake if I close the lid with laptop because as soon as I close the lid it sleeps is there some thing I can do.
Hopefully this in the right category?
volumio 80gb hdd.jpg

I guess you need to mount the drive partition.

Yes but how do I do that?