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Sunomusic

Complete Guide to Using Suno Replace Music Section

Surgically replace any section of a music track while preserving the rest perfectly intact.

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Overview

Suno Replace Music Section lets you swap out a specific part of an existing music track -- a verse, chorus, bridge, or any defined segment -- with newly generated content. The replacement section is composed to match the surrounding musical context, maintaining key, tempo, instrumentation, and overall feel.

This is a precision editing tool for iterative music production. Instead of regenerating an entire track when only one section needs improvement, you can target just that part. The model analyzes the musical context before and after the target section and generates a replacement that transitions smoothly.

The workflow is straightforward: identify the section you want to replace, provide direction for the new content, and the model handles the musical continuity. This saves both credits and time compared to full regeneration, and lets you fine-tune a track to perfection piece by piece.

Capabilities

  • Replaces targeted sections of a track while preserving the rest
  • Maintains musical continuity in key, tempo, and instrumentation across transitions
  • Supports replacing any section type: verse, chorus, bridge, intro, or outro
  • Generates new content that matches the style and feel of the original track
  • Enables iterative refinement of individual track sections

Use Cases

1

Fixing a weak chorus in an otherwise great track without regenerating everything

2

Experimenting with different verse arrangements while keeping a strong chorus

3

Replacing instrumental breaks with vocal sections or vice versa

4

Iteratively perfecting a track section by section until every part meets your vision

Input Parameters

taskId
textrequired

Original music task ID.

audioId
textrequired

Audio ID to replace.

prompt
textarearequired

Prompt used to generate the replacement segment.

Describe what you want the replacement section to sound like. Include details about mood, energy level, vocal style, or instrumentation changes.

tags
textrequired

Music style tags.

title
textrequired

Music title.

infillStartS
numberrequired

Start time point for replacement (seconds, up to 2 decimals).

Default: 0
infillEndS
numberrequired

End time point for replacement (seconds, up to 2 decimals).

Default: 10
negativeTags
text

Optional music styles to exclude.

fullLyrics
textarea

Optional full lyrics after modification.

Tips & Best Practices

Be specific about transitions
Replace one section at a time
Use with Generate Lyrics

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