Last Call Amber
Late-night club ballad: brushed drums, walking upright bass, smoky tenor sax.
Style / Directed
Get a jazz song built from the tempo, key, and instruments you name.
Brushed drums, upright bass, a tenor sax answering the vocal. Call the numbers and Vetro follows the chart.
Try one of these3 ideas
Example outputs
Three realistic outcomes based on similar prompts.
Lamp Down
90s neo-soul quiet storm built on Rhodes and fretless bass, 58 BPM in B minor.
Brass Came Early
Uptempo big band swing, full brass section over walking bass and ride cymbal.
How it works
A simple flow tailored to this exact use case.
Set the room
Say where it happens: a dim club at closing time, a rain-soaked street, a rooftop at sunset. Atmosphere shapes the arrangement.
Call the numbers
Tempo, key, and the instrument carrying it. 58 BPM in B minor with Rhodes up front reads very differently from slow jazz.
Generate and adjust
Listen back, change one thing, run it again. Swap the tenor for a muted trumpet or pull the drums down in the mix.
Ideal uses
Specific ways people use this type of track.
Noir scenes and cues
Brooding piano and a mournful sax for a short film, a trailer cut, or a scene that needs rain on the window.
Neo-soul and quiet storm
Slow ballads where the Rhodes carries the feeling and the vocal sits a little behind the beat.
Blues storytelling
Harmonica, slide guitar, and a lyric about somewhere you left. Blues is a story form before it is a chord form.
Details for Jazz Song Generator
Specific guidance so this page stands on its own.
Write the chart, not just the mood
Jazz prompts reward specificity, and the people who get the best takes here write like they are handing a band a chart. Name the tempo, name the key, name the instrument holding the melody, then say how the vocal should sit against it.
- Tempo and key: 58 BPM in B minor, 72 BPM in F major
- The instrument at the center: Rhodes, upright bass, brushed kit, tenor sax
- Vocal placement: behind the beat, breathy, a smoky alto with a rasp
- Arrangement moves: solo piano intro, strings entering on the pre-chorus, a horn solo in the bridge
Jazz, blues, and everything they touch
Jazz rarely shows up alone. The same prompt language that gets you a speakeasy ballad also gets you 90s neo-soul, a swing shuffle, a 12-bar blues, or a boom bap loop built on a chopped jazz piano.
- Smoky club ballads and big band era swing
- Neo-soul and quiet storm with Rhodes and fretless bass
- Delta and electric blues with harmonica and slide guitar
- Jazz-tinged boom bap with looped upright bass and dusty drums
- Dark jazz and noir for film and trailer cues
Vocals, instrumentals, and other languages
Write the lyrics yourself, let Vetro write them from your description, or ask for no vocal at all when the horn should tell the story. A late-night ballad lands the same way in any language you write it in.
- Your own lyrics, or lyrics written from your brief
- Instrumental mode when you want the arrangement on its own
- Ballads in Mandarin, Spanish, Swahili, or whatever the song is in
Why this works for Jazz Song Generator
Vetro takes musical direction as written, so tempo, key, instrumentation, and where the vocal sits against the beat all shape the take.
Questions? We have answers
Does naming a tempo and key actually change the result?▼
Yes, and it is the biggest upgrade you can make to a jazz prompt. Asking for 58 BPM in B minor with Rhodes up front gives you a different take than asking for a slow jazz ballad, because you have told Vetro what to build around.
Can I choose which instrument leads?▼
Yes. Name the instrument and the job it is doing: tenor sax answering the vocal line, upright bass walking underneath, brushed drums mixed low. Vetro arranges around whatever you put at the center.
Can I get an instrumental with no vocals?▼
Yes. Turn on instrumental mode or write it into the prompt, and you get the arrangement on its own.
Can I upload a reference track to steer the sound?▼
Yes. Upload at least 15 seconds of audio and Vetro uses it as a guide. Say what you want taken from it, whether that is the swing, the room tone, or the horn timbre.
Can I use my own lyrics?▼
Yes. Paste them in and Vetro sets them to the arrangement you described. Leave them out and it writes them from your brief instead.
What does a track cost?▼
There is no subscription. A song costs 20 credits, and new accounts start with 100, so your first five are on us. Download every finished track and use it commercially; the rights page has the detail.
Ready to hear the room you just described?
Name the tempo, the key, and the instrument at the center, and get a full take back in minutes.