Tagging for Two or More Genres

[Budgie]

I am using minimserver on NAS and BubbleDS on android as control point with Linn DS devices as renderers. I have a collection of classical recordings and when tagging I use genres such as Liturgical, Early, Opera etc. Often a piece falls into more than one genre and I want to find it under all which are tagged. I understand that minimserver can handle multiple genres but have never found a way to make this work. How should I enter tag for a track which is both early and liturgical if for example I want to find it when searching under either early or liturgical?