A new backing for your vocal
Describe the arrangement in plain words, "fingerpicked guitar, upright bass, brushed drums", and hear it played under your voice.
Add Instrumental to Vocals with AI
Upload a vocal or a cappella and describe the backing you want — MuseSong composes a full instrumental arrangement that follows your voice. Your first run is free — it uses the 20 free credits every new user gets, and no account is needed to try it.
Start from a vocal take, a cappella, or a sung idea on your phone. Describe the band you want behind it, and MuseSong builds a full backing track around the voice.
Price & free credits
20 credits per runNew users get 20 free credits — one run, no account needed to tryPacks from $4.99 (100 credits)Starter plan $9.99/mo (300 credits monthly)
Full pricing Cost—
Hear it in action
Before
1:47
After
1:48
Settings used: lo-fi hip hop beat, mellow keys, vinyl crackle
An AI backing track maker built around your voice
Add Instrumental keeps the vocal and composes the arrangement for it: chords, groove, and instrumentation that follow the melody you sang.
Guide the sound
Use the exclude field to rule out what does not fit, like EDM drops, heavy distortion, or an abrupt ending.
Try several styles
Run the same vocal as folk, soul, and synth-pop and compare. Every version is saved separately in your Library.
Keep building
Extend the best version, make a cover of it, or split it into stems when you are ready to mix.
Find the right backing for your song
Develop a vocal demo
Turn a voice memo idea into something that sounds like a song, so collaborators hear the potential straight away.
Explore another style
Hear the same performance with a gospel choir organ, a lo-fi beat, or a string section before committing to a production direction.
Sketch an arrangement
Use the generated backing as a reference for your band or producer: tempo, feel, and instrumentation in one file.
Rescue a cappella recordings
Give unaccompanied recordings, choir parts, or rap verses a backing track for sharing and practice.
How to add instrumental to vocals
The cleaner the vocal, the better the arrangement follows it.
Start now- 1
Choose your vocal
Pick a song from your Library or upload a vocal recording you own (paid plans and credit packs). Dry vocals without music behind them work best.
- 2
Set the style
Describe the instruments, genre, and mood, add a title, and list anything to exclude.
- 3
Generate and compare
Listen to each arrangement, download the one that fits, and continue with other tools if you need to.
Tips for better backing tracks
- Trim silence at the start of your upload so the arrangement starts with the voice.
- Mention the tempo and feel if the vocal is free-timed, e.g. "steady 90 BPM groove".
- Name the lead instrument first; it tends to shape the rest of the arrangement.
- If your source is a Library song that already has music behind the voice, run it through the Vocal Remover first.
Instrumental style ideas
Warm neo-soul, Rhodes chords, round bass, laid-back drums with ghost notes, 85 BPM.
Fingerpicked acoustic guitar, upright bass, soft brushed drums, light fiddle, warm folk.
Cinematic strings, felt piano, slow swelling brass, deep toms, emotional build, 70 BPM.
Modern pop production, punchy kick, plucky synths, sub bass, bright claps, 118 BPM.
Gospel organ, piano, choir pads, tambourine and handclaps, uplifting and full.
Keep creating with MuseSong
AI Song Maker Convert any text idea or scene into a complete song with melody, vocals, and harmony.Lyrics to Song Paste your verses, chorus, and bridge to hear AI sing your exact poetry and rhymes.AI Music Extender Lengthen existing tracks smoothly from any timestamp while maintaining rhythm and key.AI Song Cover Re-imagine any audio track in a completely new vocal tone or musical genre.Add Vocals Give instrumentals and beats expressive AI vocal performances matched to the mood.Vocal Remover Isolate crystal clear acapella vocals and clean instrumental backings in seconds.AI Music Video Turn a song into a full-length MP4 video.
New to AI music? Read the MuseSong guides.
Add instrumental FAQ
Can I upload vocals?
Yes, on paid plans and credit packs. Upload an MP3, WAV, M4A, FLAC, or OGG file up to 4 minutes (Lite, Small Pack) or 8 minutes (Pro, Ultra, Large and Mega packs). Songs from your Library can be used on any account.
What should I write in the instrumental style?
Genre, mood, and two to four instruments, plus tempo if it matters. For example: "warm neo-soul, Rhodes chords, round bass, laid-back drums, 85 BPM".
Will the original song be overwritten?
No. The new arrangement is saved as a separate result and your source is unchanged.
How are generations charged?
Each request costs the credits shown next to the button for the selected model. Failed tasks are refunded automatically.
Are stems included?
The result is a mixed song. To get the vocal and backing as separate files, run it through the Vocal Remover (Pro, Ultra, and the Large or Mega packs).
Can I add vocals to an instrumental instead?
Yes, that is the Add Vocals tool: bring an instrumental and your lyrics, and MuseSong sings them.
Does it follow the key and tempo of my vocal?
Yes, the arrangement is generated around the vocal you provide. Free-timed or very loose vocals are harder to follow, so mention a tempo in the style if the result drifts.
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 MuseSong commercial terms only cover what you are entitled to use. Rights holders can contact [email protected] with evidence of a dispute.
Is it free to use?
Yes — every new user gets 20 free credits, enough for one run, and you can use them before creating an account. Sign up free to keep your result; credit packs start at $4.99 for 100 credits.
How many credits does it cost?
A run costs 20 credits. The exact cost for the selected option is shown next to the button before you submit, and failed tasks are refunded automatically.
Can I upload any song?
Only audio you created, own, or have permission to transform — released and commercial recordings may be rejected by the catalog check, while songs from your MuseSong Library are always accepted. One upload up to 4 minutes is free to try; after that, uploads need a paid plan or credit pack.
What formats and length are supported?
Upload MP3, WAV, M4A, FLAC, or OGG: up to 4 minutes with Starter and current one-time packs, or up to 8 minutes with Pro and Studio. Previous purchases retain their original upload limits.
Can I use the result commercially?
Pro, Studio, and the Large or Mega credit packs include commercial use of what you generate — monetised videos, podcasts, games, and client work. Starter and the Small and Medium packs are for personal use. You always need the rights to the lyrics or audio you provide; AI processing does not clear third-party rights.
Build the arrangement your vocal needs
Choose a vocal, describe the band, and compare the backing tracks.