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Sunomusic

Complete Guide to Using Suno Add Vocals

Layer expressive AI-generated vocals onto any instrumental track with natural blending.

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Overview

Suno Add Vocals takes an instrumental track and generates a vocal performance on top of it. The model analyzes the music's rhythm, melody, key, and structure to produce vocals that sit naturally in the mix. You provide lyrical and stylistic direction, and the model delivers a vocal track that sounds like it was recorded for that specific instrumental.

The vocal generation understands musical phrasing and timing. It places words and syllables to match the beat, applies appropriate melodic contour, and adjusts vocal energy to match the dynamics of the underlying track. The result is a cohesive song rather than a vocal track awkwardly placed on top of music.

This is ideal for producers who have strong instrumental tracks but need vocal content, or for creators who want to quickly prototype songs with vocals before investing in studio recording.

Capabilities

  • Generates vocals that match the key, tempo, and rhythm of the input track
  • Supports diverse vocal styles from soft ballad singing to energetic rap delivery
  • Automatically adjusts vocal phrasing to align with musical structure
  • Blends generated vocals naturally with the instrumental mix
  • Handles both melodic singing and spoken-word vocal styles

Use Cases

1

Adding vocals to instrumental beats for complete song demos

2

Prototyping vocal arrangements before hiring session singers

3

Creating vocal content for background music and ambient tracks

4

Producing complete songs from instrumental loops and samples

5

Adding vocal hooks and ad-libs to enhance existing instrumentals

Input Parameters

Model
selectrequired

Select model version for vocal generation.

Options
V5_5V5V4_5PLUS
Default: V5_5
Source Audio
filerequired

Upload source instrumental audio. Supported formats: MP3, WAV, OGG, M4A, FLAC, AAC.

title
textrequired

Music title.

style
textarearequired

Music style guidance (max 1000 characters).

prompt
textarearequired

Prompt for vocal content/style (max 5000 characters).

Describe the vocal style, mood, and lyrical content. Include genre, vocal character (e.g., 'smooth female R&B vocals'), and any specific lyrics or themes.

negativeTags
textrequired

Styles or traits to avoid.

vocalGender
select

Optional vocal gender preference.

Options
MaleFemale
Default: m
styleWeight
slider

Optional. Style adherence strength (0-1).

Min: 0Max: 1Default: 0.65
weirdnessConstraint
slider

Optional. Creative deviation (0-1).

Min: 0Max: 1Default: 0.65
audioWeight
slider

Optional. Audio feature balance weight (0-1).

Min: 0Max: 1Default: 0.65

Tips & Best Practices

Provide lyrics for precision
Describe the vocal character
Match energy to the instrumental
Use clean instrumentals

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