Jonas Brothers, “The Album.”

For their sixth studio release, The Album, the Jonas Brothers venture into some uncharted musical waters.

The band planted some of the seeds on its prior effort, 2019’s Happiness Begins, with those now blossoming into a more organic sound. Hooks are still the name of the game here, and this JoBros record is no exception, but these sounds cast a wider net. With a combination of funk, R&B, Americana and even the occasional country flash, the trio dials in a modern version of a throwback album. It’s no coincidence, as the band has said this record was inspired by the ’70s music to which their dad listened.

That ’70s influence may be no more evident than on funky groove-heavy jams “Miracle” and “Waffle House.” On the former, Nick Jonas sings falsetto, while Joe Jonas holds down a raspy mid-tone. Both tracks feature a tight, rhythmic beat; the keyboards are tightly syncopated with the drums. What’s old is new again, as they sound like a blend of Stevie Wonder and the Bee Gees.

“Demons better watch out, angel on the block now/ Heaven let the rain drop down,” Joe Jonas sings.

“Waffle House” may be the most melodic (and only ever?) ode to the all-day breakfast food chain. The self-deprecating track about fighting and talking it out as brothers in a diner is a fun and infectious romp.

Other tracks like “Montana Skies” take a different tack. That upbeat, acoustic-driven song keeps the tempo moving but with a rawer, harmony-focused sound in the vein of Fleetwood Mac.

“Wings” and “Sail Away” keep the party going, with the latter leaning heavily on the band’s keen sense of harmony, even closing a cappella.

The band is at its best when it’s delivering catchy, memorable, pop-culture-aware one-liners, as on “Americana,” a track that fuses pop, R&B and a little folk. “Under God, working hard, nail to hammer/ Couple toys, the Brooklyn boys from Alabama/ Hit the floor from ‘Jersey Shore’ to ‘Country Grammar’/ Jay-Z a little James Dean,” Joe Jonas sings in quick cadence.

Nick Jonas leads the way on “Celebrate!” which is a fitting title for a track that explodes with the help of a choir in the chorus. The percussive breakdown in the bridge is a sweet touch that helps bring the song home.

The first momentum shift arrives with “Vacation Eyes,” a slickly delivered funk ballad that slows things down while still maintaining the personality and spirit of the album. It flows naturally into “Summer in the Hamptons,” a reggae-influenced track that feels like an extended interlude with JoBros trading off quick vocal lines.

The warm weather vibes remain on “Summer Baby,” a track that will probably excite fans of the band’s signature pop sound. The song trades in the ’70s influences for something closer to a modern pop jam. The emotional “Little Bird” covers new lyrical territory for these young men: the relationship between a father and daughter. It sounds like it’s being performed live, cheering crowd and all. The record concludes with a collaboration with singer-songwriter Jon Bellion (who executive-produced the album), soaring and chaotic “Walls.”

On The Album, most tracks clock in at right around two minutes—down from the roughly three-and-a-half minutes typical of a radio-length track—which is a trend developing in pop music that may be influenced by TikTok. It’s neither here or there, but the Jonas Brothers seem to want to make their mark in a shorter amount of time.

Follow writer Mike DeWald at Twitter.com/mike_dewald.