Hey, my name is Sinmi and I am building one of the biggest music collaboration tools of the decade.

@sinmicomposer1

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Promoted product

Stemrstemr.co.uk

Timestamped feedback on the waveform, in real time. The collaborative home for stems, mixes and revisions.

Why it worked

The creator uses a 'build in public' narrative that builds trust and authority, framing the product as a direct solution to a relatable pain point rather than a generic advertisement.

Summary

The creator introduces his new music collaboration platform, Stemr, by explaining the common frustrations of file sharing and how his tool solves them. He then walks the viewer through the product's website and encourages them to join the waitlist.

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Transcript, structure and on-screen text

5 beats, a 189-word transcript and 8 lines of on-screen text — the parts you need to write your own version.

Original caption

I built this from scratch. STEMR is the collaborative audio feedback platform musicians actually deserve. Upload your stems. Share one link. Get timestamped feedback directly on your waveform. No downloads. No chaos. Just real feedback in real time. Beta drops Friday 17th July. Spots are limited. 👇 Secure your early access now stemr.co.uk #MusicTech #BuildInPublic #StartupLife #MusicProduction #coding