Firma: Vocalcoaching, Guitarcoaching, Stimm- & Sprechtraining, Stimmtechnische Forschung.
Geschäftsführer: Marko Osterholz. Mitarbeiter: Magali Luyten, Kelly Sundown Carpenter
Sänger-Internetportal: Online Tutorials und Sänger-Interviews, Tipps & Wissenswertes rund um Gesang.
Blog, Member-area, Diskussionsforum, shop. Magali Luyten, Kelly Sundown, Jens Heckermann, Mirjam von Eigen.
www.rockvoice-hq.com
Der Siegelring des Pharao - das Musical von Marko Osterholz und Astrid Kronsbein
spezielle Teile für Sci-Fi-modelle und Repliken. Christian Fröhlich, Stefan Hacker und Marko Osterholz
Hard Rock band with Vocals by Marko Osterholz and guitars by Thorsten Koehne
the Marko Osterholz band project. Vocals & Guitars by Marko Osterholz
School for Musical and modern dance.
Vocalcoach/ Musical Compose r/ Lecturer for stage performance: Marko Osterholz
www.d4y-musical.de
Melodic Metal Band, Lead Singer Marko Osterholz 2001-2004, signed with Remedy Records, Hamburg
some band project to honor the good ole Stormblade-times
Melodic Metal Band, Lead Singer Marko Osterholz 1999-2001
