iTunes Store music preview

Using my iMac, I used to be able to preview albums available from the iTunes Store (so that I could decide whether or nor to buy them) while using Apple Music. I can preview them on my iPad if I use the iTunes Store App (rather than Apple Music) but I cannot find an iTunes Store App for the iMac. Any idea how I get to preview music available from th iTunes Store on an iMac running macOS Big Sur?