Janet Jackson is well aware of the job at hand on her first album in seven years, and she doesn’t waste any time facing up to it.

“Hello,” she coos in the opening track of “Unbreakable.” “It’s been a while. Lots to talk about.”

No kidding. In 2009 Jackson’s brother Michael died. In 2012 she married a Qatari tycoon, Wissam Al Mana. And more recently she’s seen her signature sound — lush and whispery but never forsaking a good beat -—come back into vogue in the work of younger singers like Tinashe and FKA Twigs.

“The world keeps calling me,” Jackson sings in “Well Traveled.” With “Unbreakable” she’s finally offering her reply.

For help, she enlisted Jimmy Jam and Terry Lewis, the inventive producers with whom she recorded her most important music.

Together on “Unbreakable” they create grand-scaled but meticulously detailed songs that almost sound as though they’ve been under construction since 2008. In the title track, a sampled soul vocal loops over a busy bass groove before giving way to Jackson’s lush overdubbed harmonies, while “Night” keeps layering new textures.

For “After You Fall,” a ballad of steadfast devotion, Jam and Lewis go more intimate, clearing away everything but Jackson’s voice and a tolling piano figure. Yet Jackson does so much with her singing — bending notes, applying vibrato, turning her breath into a percussive element just like her brother used to do — that the result is no less stimulating. Ditto the album’s first single “No Sleeep,” a plush slow jam in which she murmurs as seductively as she did on her 1993 album “Janet,” a high-water mark of steamy bedroom R&B.

But if the music makes for delicious ear candy, Jackson isn’t content to leave it at that. She also has messages to deliver, as in “The Great Forever,” where she addresses the widespread curiosity about her romantic life. “I don’t see why loving someone or what I do seem so radical to you,” she sings.

“Burnitup!”, a boisterous duet with Missy Elliott, advises Jackson’s many admirers to watch the throne, lest they assume her spot is free for the taking. And “Broken Hearts Heal” is a tender tribute to her brother, albeit the young, carefree version of the superstar we later came to know as a victim of his fame.

“Amazing times while we were growing,” she sings, describing a childhood in which she and her siblings “made up songs to do our chores to.”

Elsewhere on “Unbreakable,” Jackson can get a little blurry. “Take Me Away” has a vivid electro-rock arrangement but vague words about looking for escape with a lover.

And the album isn’t without some residual trend-chasing left over from her previous record, “Discipline.” It’s hard to hear “Shoulda Known Better,” an EDM-style banger full of do-gooder platitudes, as anything other than a wannabe version of Katy Perry’s “Firework.”

For the most part, though, “Unbreakable” shows off a quality even more valuable in a pop diva than the durability its title claims. It suggests Jackson is unsatisfied.