A Cappella Attack: Wellerman
Sing “Wellerman” with nothing but your voice. Stack three or more vocal layers: lead, harmonies, a low bass line, stomps and claps for the beat.

- Starts
- Ends
- 3+ layers
- Voice only, no instruments
Musaic - Recording Studio is free for iPhone and iPad.
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Mosaic video
Four panes, one for each voice.
Audio Lab is free during the challenge
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Audio only
No camera. Your song becomes a video at the end.
Audio Lab and Song visuals are free during the challenge
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Get Musaic
Musaic - Recording Studio is free on the App Store for iPhone and iPad.
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Start the project
Open the Challenges tab on the start screen and tap Start project. Choose Mosaic video or Audio only.
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Record
Record one voice after another, with headphones on, so the earlier voices stay out of the new take.
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Export and post
Export the video and post it on Instagram or TikTok with #musaicchallenge #acapella. Tag @musaic_app to get featured.
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Do I need Musaic Pro?
No. The challenge is free. Until it ends, Audio Lab is free in its projects, and in Audio only so are Song visuals.
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Which version of Musaic do I need?
Musaic 2.1 or later offers both ways and the free Audio Lab. An older version starts a Mosaic video. Update Musaic in the App Store.