What is the fine-grained topic of the following text: To celebrate its 60th anniversary and its influence on dancefloors around the world presented here on seven 7-inch 45s are 14 in-demand rare grooves from both the famous and underrated artists who cut amazing music for the Stax group of labels, all highly sought after around the world by connoisseurs of both Modern and Northern Soul. Only return the topic.
60th anniversary celebration of Stax group of labels featuring rare grooves from its artists.