Project is dead.
Mach and Siemek are scammers who will walk away with $Ms after two years of "development". Mark my words - nothing will come of this project and anybody who blindly follows the bullsh**t deserves to lose their money.
how could you say that this project is dead?
check this artical about opus takes on AI
https://medium.com/@info_62555/opus-takes-on-ai-song-suggestion-algorithms-e03cb0d171b7opus team is still working on the project and i hope that it will soon gives good news to its community