‘Shrines,” the debut album from Montreal’s Purity Ring, calls to mind the old line about monkeys and accidental Shakespeare: given enough time, a million indie-electro duos will eventually stumble upon the quintessential blog-wave buzz record. This is as close to that ideal as we’ve heard in some time. A slight affect belies the depth of contemporary musical signifiers layered one over the next here, with the moment’s ubiquitous skittering hi-hats, undulating synth bass washes, and art-damaged waif-cooing intertwined with bedroom laptop R&B on songs like “Grandloves.” What about chopped-up and effected vocals repurposed as flattened-out bass notes? We’ve got those, too, on “Crawlersout,” a dark distillation of this increasingly familiar washed-out aesthetic. “Fineshrine” and “Amenamy” take their filtered steel-drum tempos from the beach, with the latter summoning a haze of noise for the bright keys to pierce through. Pulling the entire effort back from the precipice of cliché is the immediate charisma of vocalist Megan James, particularly engaging when hurdling over cleverly constructed lines of wordplay, as on “Ungirthed”: “The tinge of my eyes is familiar to fosterly men in their coats / who fiend close to their closetly homes and ruminate the walls up with ghosts,” she sings, matching the dreamlike music with appropriately evocative imagery. (Out Tuesday)

ESSENTIAL “Ungirthed”