When is something good just as another example of its genre, without effort at innovation or experimentation? In other words, how do you distinguish between something that's just lazy and an earnest work of art created out of love of the genre that might go a bit too far with leaving most of that genre's tenets intact? Sail's Slumbersong raises these questions and then some, as it mercilessly worships stoner metal in all its fuzzy glory, never bothering itself with saying anything new or audacious about the genre. But you know what? It works. Slumbersong is a pleasing album, clearly crafte with love and a not irrelevant amount of talent for riffs, raspy vocals and groove.