Remove apostrophes - New user question

New user here - sorry if this is a dumb question but I have been trying for hours to discover how to remove and / or replace specific characters from a group of tags and file names. For example:

Marvin Gaye - Let's Get it On.mp3 - I want to remove the apostrophe from let's
Kool & the Gang - Celebration.mp3 - I eant to replave The "&" with "and"

I know this is probably very simple but I just cannot figure this out. Thanks for any assistance.

Action: Replace
within other actions as function:
e.g. $replace(%_filename%,&,and)

If you want to remove something, repalce it with nothing.

Thanks for trying to assist me, but I still cannot get this to work. I do not know what I am doing incorrectly. Is there a tutorial available to demonstrate how to properly do this? I have 25,000+ tags to fix, so I would really like to learn how to use this.

you get to Actions by the two buttons with the "Aa" on it. The one with the yellow arrow is for immediate actions, the other one for actions which you want to save, so that you can use them anytime again

Action: Replace
Original: &
Replace with: and

Original: '
Replace with:

the second option would be Format Value, wher you can do more replacements at once:

Action: Format Value
Field: _Filename
Format String: $replace(%_filename%,&,and,'',,)
you can make this as long you want, the sceme is: $replace(string,from1,to1,from2,to2,...)

Thank You, Thank You, Thank You! That was exactly the help I needed. Outstanding program and support.