Array of string in MDX

I have a dimension attribute that has composite key, such as CalendarQuarter in this post.

This means my attribute members will have members that can be written as:

[Date].[Quarter].&[2015]&[1]
[Date].[Quarter].&[2015]&[2]
[Date].[Quarter].&[2015]&[3]
[Date].[Quarter].&[2015]&[4]
[Date].[Quarter].&[2016]&[1]
...

I need to retrieve all members of an attribute from a dimension, but I want to do this using a list of names i.e, using the MEMBER_NAME property of that attribute.

The code to do this is as follows:

FILTER([Date].[Quarter].MEMBERS, [Date].[Quarter].CURRENTMEMBER.NAME = '2')

Now, since I have a list of member names I want to pass an array of string or a string of comma separated values to do this.

I don't know how to use either in FILTER function given above.

Can anyone help, please?

P.S. CalendarQuarter is just an example I have used. My attribute has two string values as composite keys, making this even more difficult.