Reviewed by Jonathan West · Updated Oct 3, 2026

How to Write Suno Prompts

A guide to structuring style prompts, setting tempo, and choosing instruments in Custom mode.

Reviewed by Jonathan West · Updated Oct 3, 2026

To prompt Suno correctly, enter your genre, tempo, vocal type, named instruments, and mood into the Styles box as short specific phrases, put your lyrics into the Lyrics box, and generate in Custom mode. Custom mode provides the most creative control. It lets you write your own lyrics, set style, mood, and genre, and define tempo, instrumentation, and vocal characteristics.

A visitor recently pasted a style prompt into our chat while browsing our Suno alternatives comparison: "Dark Persian trap rap, male vocal, deep gritty voice, 92 BPM, heavy 808 bass, punchy trap drums, dark piano melody, atmospheric synths, emotional verses, catchy melodic hook, cinematic intro, aggressi..." (cut off in the paste). We do not generate songs for visitors on this site, but that real prompt shows how different musical elements fit into a generation request.

Suno updated its core system when Suno v6 replaced v5 and v5.5 on September 9, 2026. A generation uses roughly five credits per song, and prompts do not guarantee a result on the first try. You will often need to re-generate and adjust your phrasing to find the sound you want.


How to Build a Suno Style Prompt

In Suno's Custom mode, you enter musical descriptors into the Styles section rather than writing a single narrative paragraph. Suno's own guidance instructs creators to be specific by mentioning genre, mood, keywords, and instrumentation. Within the Styles section, list instruments, voice type, tempo, and overall mood.

The prompt pasted into our chat provides a clear breakdown of these musical categories in practice: genre and language flavor (Dark Persian trap rap), vocal characteristics (male vocal, deep gritty voice), tempo (92 Beats Per Minute (BPM)), rhythm and low end (heavy 808 bass, punchy trap drums), melodic instrumentation (dark piano melody, atmospheric synths), and arrangement cues (emotional verses, catchy melodic hook, cinematic intro, plus a mood word cut off at "aggressi" in the paste).

Arrangement cues like cinematic intro, melodic hook, and emotional verses appeared directly inside the visitor's style text. We have not verified how Suno weights arrangement cues placed in the Styles box versus cues placed elsewhere. Testing different placements across test generations is how to see their impact on your track.

Suno's official guidance recommends listing instruments, voice type, tempo, and overall mood as specific descriptors in the Styles section.
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Tightening Prompts and Ordering Beat Elements

Suno's beat-making guidance suggests a specific sequence for prompt elements: order a prompt by tempo, genre, rhythm style, instruments, and mood. Suno also notes that short sentences work better than long descriptions, and that naming beat instruments directly helps avoid vague results.

Language selection requires direct testing. Whether Suno supports Persian or Farsi vocals is not specified on official feature lists. If you plan to generate non-English lyrics or regional vocal styles, test the phrasing on a small credit balance and check Suno's help pages for official language updates before committing large workloads.

  • Tempo: Put Beats Per Minute (BPM) first, as Suno's beat-making order does; Suno's R&B example also names a key.
  • Genre and rhythm style: State the core genre and rhythmic foundation using established musical terms.
  • Direct instrumentation: Name specific physical or electronic instruments rather than general sound categories.
  • Short phrasing: Use brief, distinct phrases instead of narrative paragraphs.
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Worked Prompt Templates for Rap and R&B

Official examples from Suno demonstrate how concise descriptions combine instrumentation, tempo, and vocal traits. For an upbeat pop track, Suno provides this sample prompt: "An upbeat pop song at 110 BPM with acoustic guitar, synth pad, and energetic male vocals." This example shows how genre, tempo, two distinct instruments, and a vocal description create a complete style prompt in one sentence.

For a more detailed arrangement, Suno publishes an official contemporary R&B example: "Contemporary R&B song at 92 BPM in F minor. Male lead vocals with warm, soulful tone; female backup vocals for layered harmonies and soft responses during chorus sections; Instrumentation: Electric piano, deep bass, mellow drums with swing, clean electric guitar riffs, and subtle synth pads. Add gentle reverb and light tape saturation for a vintage soul feel." In addition to defining instruments and vocal tones, this example names a key, and Suno says you can also communicate tempo changes.

For rap and beat production, Suno hosts a dedicated AI rap generator hub. Based on Suno's recommended order of tempo, genre, rhythm style, instruments, and mood, here is our example rebuilding the visitor's trap concept into a structured style prompt: "92 BPM. Dark trap rap. Punchy trap drums, heavy 808 bass, dark piano melody, atmospheric synths. Deep gritty male vocal. Dark emotional mood." This prompt organizes the visitor's raw tags into Suno's suggested sequence without changing their core musical choices.


Free Plan Limits and Credit Iteration

Because prompts do not guarantee an exact musical output, generating songs in Suno is an iterative process. You should expect to re-generate and adjust your prompt text across several attempts to reach your desired sound. Since a generation uses roughly five credits per song, your plan tier determines how much iteration you can perform.

Free accounts operate on the v6-mini model and receive 50 credits per day. The free tier includes zero downloads and provides no commercial rights. If you need commercial rights to monetize your audio, you must upgrade to a paid subscription, as detailed in our Suno pricing breakdown.

Paid tiers provide larger credit pools. Pro costs $10 per month, or $8 per month billed annually, and includes 2,500 credits per month with 20 downloads. Premier costs $30 per month, or $24 per month billed annually, and includes 10,000 credits per month, 60 downloads, and access to Suno Studio. If you previously worked with older versions, review our Suno v5 guide and Suno explained overview to see how Suno evolved into v6.

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Who Should Look Beyond Basic Suno Prompts

This prompting method is designed for creators who want to guide song generation through Custom mode using defined genres, instruments, and tempos. It is not suitable for creators who need guaranteed one-take results or commercial rights without a paid plan. Free accounts do not include commercial rights, so commercial projects must factor in monthly plan costs from the start.

Our verdict on prompting structure would change if Suno releases official guidance documenting separate weighting mechanics for arrangement tags, or if Suno alters the commercial terms on free accounts. Creators evaluating generative audio tools can compare feature sets and generation workflows in our Suno vs Udio analysis.

To start testing Suno prompts, open Custom mode, enter a defined tempo, genre, rhythm, instruments, and mood into the Styles box, and generate your first track using a small credit allocation.

Frequently Asked Questions

  • To prompt correctly in Suno, switch to Custom mode, put your lyrics in the Lyrics box, and enter your genre, tempo, vocal type, instruments, and mood in the Styles box. Suno's beat-making guidance recommends ordering your style prompt by tempo, genre, rhythm style, instruments, and mood. Keep phrases short and name specific instruments.
  • Suno provides official examples for different genres. For pop, Suno suggests: "An upbeat pop song at 110 BPM with acoustic guitar, synth pad, and energetic male vocals." For R&B, Suno provides: "Contemporary R&B song at 92 BPM in F minor. Male lead vocals with warm, soulful tone; female backup vocals for layered harmonies and soft responses during chorus sections; Instrumentation: Electric piano, deep bass, mellow drums with swing, clean electric guitar riffs, and subtle synth pads. Add gentle reverb and light tape saturation for a vintage soul feel."
  • You can only monetize Suno songs if you subscribe to a paid plan. Free accounts have zero commercial rights. Subscriptions that grant commercial rights start with Pro at $10 per month ($8 per month billed annually) and Premier at $30 per month ($24 per month billed annually). See our Suno pricing guide for complete subscription terms.
  • Suno publishes a dedicated AI rap generator hub page on its website.
  • Yes, you can include Beats Per Minute (BPM) in your prompt. Suno's official examples include BPM numbers, its R&B example also names a key, and Suno notes that you can also communicate tempo changes in your prompt text.

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