Add Instrumental: vocal to full track
Start from a vocal or a cappella and describe the backing. Grok Music composes chords, groove, and instrumentation that follow your melody.
Add Tracks to Your Songs
Every song is missing something at some point. Add a vocal performance to an instrumental, or add a full band behind a vocal, without leaving your browser.
Cost—
Two ways to complete a song
Pick the direction that matches your source. Both tools keep your original and save each new version to your Library.
Add Vocals: instrumental to full song
Start from a beat or instrumental, paste lyrics, and describe the voice. Grok Music writes a topline and sings your words.
Use Library songs or uploads
Any song you made with Grok Music can be used on any account. Uploading your own audio is included with paid plans and credit packs.
Compare every take
Each run returns separate versions, so you can try different styles on the same source and keep the best one.
Which tool should I use?
You have a vocal, a voice memo, or an a cappella
Use Add Instrumental to build the arrangement around it.
You have a beat or an instrumental
Use Add Vocals to hear your lyrics sung over it.
You have a full song but want a different part
Split it first with the Vocal Remover, then add a new vocal or a new backing to the part you keep.
How to add a track to a song
Choose a direction with the switch above the studio, then follow three steps.
Start now- 1
Choose your song
Pick a Library song or upload audio you own.
- 2
Describe the new part
For instrumentals, describe the instruments and mood. For vocals, paste lyrics and describe the voice. Add a title and list styles to exclude.
- 3
Generate and compare
Listen to the takes, download your favourite, or continue with the extender.
Tips
- Clean sources give clean results: remove existing music from a vocal, or vocals from a beat, before adding the new part.
- Keep descriptions short and concrete: genre, mood, two to four instruments, tempo.
- Use the exclude field to stop the sounds you keep hearing and do not want.
Where to start
Add Instrumental: describe the band, e.g. acoustic guitar, soft drums, warm folk.
Add Vocals: paste lyrics and describe the singer, e.g. smooth male R&B vocal.
Vocal Remover first, then Add Instrumental to the vocal.
Keep creating with Grok Music
AI Music Generator Create a new song from a description or your own lyrics.AI Song Extender Continue a song from any point with new lyrics or an instrumental section.AI Song Cover Re-perform a song in a new genre, mood, or vocal style.Add Vocals Sing your lyrics over an instrumental or beat.Add Instrumental Build a full backing track around a vocal.Vocal Remover Split a song into vocals, instrumental, or individual stems.
New to AI music? Read the Grok Music guides.
Add tracks FAQ
What is the difference between Add Vocals and Add Instrumental?
Add Vocals sings lyrics over an instrumental. Add Instrumental builds a backing track around a vocal. Choose the one that adds the part your song is missing.
Can I upload my own audio?
Yes, on paid plans and credit packs, up to 4 minutes on Lite and the Small Pack and up to 8 minutes on Pro, Ultra, and the larger packs.
Will my original be changed?
No. Results are saved as new songs in your Library.
How much does it cost?
The credit cost for the selected model is shown next to the button before you submit. Failed tasks are refunded automatically.
How long are my files kept?
Every task stays listed in your Library, but the audio files themselves are hosted by our generation partner for about 14 days. Download the takes you want to keep: MP3 is included with paid plans and credit packs, and WAV export with Pro, Ultra, and the Large or Mega packs.
What audio am I allowed to use?
Only audio you created, own, or have permission to transform. When you upload a file you confirm that you hold those rights. AI processing does not clear third-party rights, and Grok Music commercial terms only cover what you are entitled to use. Rights holders can contact support@grokmusic.io with evidence of a dispute.
Add the part your song is missing
Choose a direction, pick a track, and compare the results.