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How to add music/sound to Instagram Reel

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How to add music/sound to Instagram ReelTutorial (i.redd.it)

submitted 4 minutes ago by bundlesocial<br>comment<br>share<br>save<br>hide<br>report

Howdy all, Marcel here, one of the devs behind bundle.social.

Small one for anyone building Instagram publishing workflows. Meta now supports adding selected music/sounds to Instagram Reel publishing through the API flow, which is nice because they finally matched TikTok.

The rough workflow is:

User connects their Instagram account

Your app fetches available Instagram audio

User picks a sound

You take the returned audio_id

You pass it as musicSoundId when creating the Reel post

1. Fetch Instagram audio

To get available sounds, you can call:

GET https://api.bundle.social/api/v1/misc/instagram/audio?teamId=TEAM_ID&audioType=original_sound

Example:

const res = await fetch(<br>"https://api.bundle.social/api/v1/misc/instagram/audio?teamId=team_123&audioType=original_sound",<br>headers: {<br>"x-api-key": process.env.BUNDLE_SOCIAL_API_KEY<br>);

const data = await res.json();<br>console.log(data.audio);

The response gives you a list of audio objects:

audio: [<br>audio_id: "123456789",<br>cover_artwork_thumbnail_uri: "...",<br>cover_artwork_thumbnail_url: "...",<br>display_artist: "Artist name",<br>duration_in_ms: 24000,<br>audio_type: "original_sound",<br>title: "Sound title",<br>download_url: "...",<br>ig_username: "creator_username",<br>profile_picture_url: "..."

The important field is:

audio_id

That is the value you pass later as:

musicSoundId

Everything else is mostly useful for building a UI: title, artist, thumbnail, duration, creator username, preview URL, etc.

2. Create the Instagram Reel with music attached

Once you have the sound ID, you pass it inside musicSoundInfo on the Instagram payload.

Very rough example:

await fetch("https://api.bundle.social/api/v1/post", {<br>method: "POST",<br>headers: {<br>"x-api-key": process.env.BUNDLE_SOCIAL_API_KEY,<br>"Content-Type": "application/json"<br>},<br>body: JSON.stringify({<br>teamId: "team_123",<br>title: "Instagram Reel with music",<br>status: "SCHEDULED",<br>postDate: "2026-05-20T10:00:00.000Z",<br>socialAccountTypes: ["INSTAGRAM"],<br>data: {<br>INSTAGRAM: {<br>type: "REEL",<br>text: "Reel caption goes here",<br>uploadIds: ["upload_video_123"],

musicSoundInfo: {<br>musicSoundId: "123456789",<br>musicSoundVolume: 50,<br>videoOriginalSoundVolume: 50<br>})<br>});

The volume fields are basically:

musicSoundVolume: 50, // how loud the selected music should be<br>videoOriginalSoundVolume: 50 // how loud the original video audio should be

So if you want the music to dominate:

musicSoundVolume: 80,<br>videoOriginalSoundVolume: 20

If the original video audio matters more:

musicSoundVolume:...