"uneven rhythm" is correct and usable in written English.
You can use it to describe a pattern or flow of sound which is not consistent or regular. For example, "The novel's narrative structure follows an uneven rhythm, with unexpected twists and turns along the way."
His first, "Songs for the Disappeared," from 2009, sounded like a résumé for a serious nonclassical guitarist: prepared nylon-string guitars played in uneven rhythm cycles, in speedy, cycling arpeggios running through strange and intuitive harmonic motion, in uneven meter or in rhythmic waves.
Talk drifted away into the uneven rhythm of everyone's heaving breath, and there was only the sound of the ponies carrying their gear.
The most interesting songs couple uneven rhythms and admirably sparse beats, best exemplified on the single Push Pull.
The stories of their struggles and anxieties have the uneven rhythms and shaggy shape of experience clumsily but feelingly put into unfamiliar words; they are never just anecdotes cut and trimmed to form political paper airplanes aimed at the audience.
Live performances were rare, but the group scored hits with "Do It Again," "Reelin' in the Years," "Rikki Don't Lose That Number," "Peg," and "Hey Nineteen"—songs that didn't shy away from unusual harmonies, uneven rhythms, jazzy instrumentation, and snide, insinuating lyrics (perfect for Fagen's snide, insinuating lead vocals).
Two years ago, it suddenly began tapping out strange, uneven rhythms like undecipherable Morse code and these irregular pulses would persist for hours, sometimes days.
These were the first performances of Mr. Wheeler's "Island Lullaby" and his "Firefly Lullaby," which has uneven, twinkling rhythms that are both unpredictable and serene.
But if Schwartz's findings are replicated, they could be put to good use: Older children with long-QT syndrome are commonly treated with drugs called beta-blockers, which help to smooth out uneven heart rhythms.
Chirping winds, uneven meters and overlapping rhythms increase momentum and give way at the end to ominous timpani-driven chords.
Against this music, how do we measure pieces like "The Soldier's Tale," coming just a few years later, in 1918: tight, glaring, dry-eyed, boogying its way through off-center rhythms and uneven meters?
Hearing this tricky, quasi-metal band is like watching rugby: it's all high-impact scrimmaging, fractured and tightly composed, with rhythms pounded in uneven numbers as two guitarists alternated between torrential arpeggiation and slashing chords.
