How does the AI music extender work?
It listens to the source up to the start point you choose, then generates a new continuation that follows your style notes and lyrics. The result is a new song file that contains the original up to that point plus the extension.
Can I upload a song to extend it?
Yes, on paid plans and credit packs. Upload an MP3, WAV, M4A, FLAC, or OGG file up to 4 minutes (Lite and Small Pack) or 8 minutes (Pro, Ultra, Large and Mega packs). Songs from your MuseSong Library can be extended on any account.
Is the AI song extender free to try?
New accounts receive free welcome credits that work in every tool. The exact cost of an extension is shown next to the Extend button before you submit, and credits for failed tasks are returned automatically.
Can I add lyrics or keep it instrumental?
Both. Paste lyrics for the new section to hear them sung, or switch Instrumental on for an outro, interlude, or background bed.
Will extending replace my original song?
No. The original stays in your Library and the extension is saved as a new result, so you can compare them or try again from another point.
Which models can I use?
Suno V6, V6 Mini, and V6 Wild. Library songs are matched to the model they were made with; uploads default to V6 and you can switch before generating.
Can I download or publish the result?
MP3 downloads are included with paid plans and credit packs, WAV export with Pro, Ultra, and the Large or Mega packs. Commercial use is covered on Pro, Ultra, and the Large or Mega packs for music you have the rights to.
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.