Jazz prompts work best when you name the line-up and the feel — quartet, brushes, swing — rather than just saying 'jazz'.
Style prompt
Paste into Suno's style field
Small-combo jazz, upright bass walking through the changes, brushed drum kit with a light swing, warm piano comping with extended chords, breathy tenor saxophone taking the melody, optional smoky female vocal, 110-130 BPM, live club recording
Tags
Short keyword version
jazz, swing, upright bass, brushes, saxophone, piano trio, smoky
Avoid / negative
Keep the output from drifting
edm synths, trap hats, distorted guitar, autotune, orchestral pop, four on the floor
Recommended slider settings
Style influence60%
Weirdness35%
Jazz benefits from a bit more Weirdness — improvisation should not sound predictable.
Tips for better jazz results
Name the instrument that carries the melody; otherwise the model picks one at random.
'Brushed drums' instantly signals jazz over rock.
Ask for a solo section in the middle and mark it in the lyrics.