How to write Suno prompts: a complete guide

Type sad pop song into Suno and you get exactly that: something sad, something pop, and something you forget by the second chorus. The model had nothing specific to hold, so it reached for the average of every sad pop song it was ever fed. Now write melancholic indie pop, brushed drums, warm Rhodes, breathy female vocal, tape hiss, slow build. The result stops being everyone's song and starts being yours.

A Suno prompt is not a spell you whisper at a genie. It is a work order for a session band that will play precisely what is written and nothing you forgot to mention. This guide is about writing that order.

The three boxes, and why mixing them up ruins the track

Suno gives you two inputs that do completely different jobs, plus a title that changes nothing about the sound.

The error almost every beginner makes is bleeding one box into the other: mood words dumped into the lyrics field, or verses typed into the style field. Keep the border clean. Style is how it sounds. Lyrics is what gets sung and in what order. Cross them and Suno hedges its bets, which is another way of saying it gives you mush.

Write the Style field like a spec sheet, not a mood board

The Style field is short and it rewards nouns. Five axes cover almost any track:

1. Genre or sub-genre - boom bap, dream pop, neo-soul, phonk
2. Mood - wistful, menacing, euphoric
3. Instruments - analog bass, muted trumpet, brushed drums
4. Vocal - breathy female vocal, gravelly male baritone, or instrumental
5. Production or era - 80s tape warmth, lo-fi, modern radio master

Here is the difference it makes. chill music for studying gives you a beat that could be anyone's. lo-fi hip hop, dusty vinyl crackle, mellow Rhodes, no vocals, unhurried and rainy gives you a beat with a point of view. Same length, ten times the control.

Two positions worth defending, because they save you credits:

• Describe tempo in words, never in numbers. slow, mid-tempo, driving all land. A written BPM tends to get ignored, and worse, a hard number can fight the groove the genre already implies. You end up paying for re-rolls that a single adjective would have prevented.
• Do not lock a key. Suno picks a key that fits the melody it wrote. Forcing one usually costs you audio quality and buys you nothing.

Lyrics: everything gets sung unless it sits in brackets

This is the single most useful fact about the Lyrics box, and it trips up almost everyone at first. Whatever you type gets sung, unless it is inside square brackets. Bracketed text is a stage direction, not a lyric.

[Intro]
[Verse]
Cold coffee and a colder phone
Every green light feels like going home
[Chorus]
Drive, just drive
[Guitar solo]
[Outro | fade out]

So [Chorus] shapes the arrangement and is never heard, while Drive, just drive is. The failure case is instructive: type guitar solo here without the brackets and the singer will earnestly sing the words "guitar solo here". Bracket it and Suno plays the solo instead. Use [Verse], [Chorus], [Bridge], [Instrumental], [Build], [Outro] to control the shape, and keep any stage direction, a fade or a solo, inside the brackets so it never leaks into the vocal.

The four moves that stop Suno drifting

• One idea per Style field. Two conflicting genres average into slop. If you want a fusion, name it as a single thing (bossa nova trap) instead of listing both and hoping.
• Repeat the vocal you want. If the voice keeps slipping between takes, state it in the Style field and again at the top of the lyrics. Redundancy here is a feature.
• Let tags do the arranging. [Instrumental] and [Build] move the song more than any adjective ever will.
• Change one variable at a time. When a track is close but wrong, edit a single descriptor and re-roll. Change five things and the next take teaches you nothing, and each blind re-roll costs credits you did not need to spend.

A template you can reuse

Style: [sub-genre], [mood], [2-3 instruments], [vocal type], [production/era]
Lyrics:
[Verse]
...
[Chorus]
...
[Bridge]
...
[Outro]

If writing every field from a blank box sounds like work, sunomarket keeps a catalog of style prompts you can copy and bend to your track instead of starting cold each time.

FAQ

How long should a Suno prompt be? The Style field is short on purpose, a dense line or two. Spend the room on specific nouns (instruments, vocal, era) and skip the filler adjectives that describe nothing.

Why does Suno ignore my prompt? Nine times out of ten the prompt is vague or it argues with itself. epic calm aggressive song cancels out to nothing. Pick one direction and commit to it.

Can I reuse the same prompt? Yes, and you should. A Style field that works is worth saving. Keep it, swap only the lyrics, and a whole set of songs holds one consistent sound.

Should I put BPM or key in the prompt? No. Describe the tempo in words and let Suno choose the key. Hard numbers get ignored at best and hurt the take at worst.