This is the Gesprächskonzert by Horst Mayer for his MD900 extended virtual analog synthesizer at SUPERBOOTH23.
https://mayer-emi.at/
SUPERBOOTH Berlin:
https://www.superbooth.com/en/
https://twitter.com/Superbooth_Bln
https://www.instagram.com/superbooth_berlin/
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SchneidersLaden presents SUPERBOOTH23