Since 2017, member of the German Bundestag and spokesperson for cultural policy of the Bündnis 90/Die Grünen parliamentary group. Currently spokesperson for cultural and media policy of the Bündnis 90/Die Grünen parliamentary group, member of the Committee for Culture and Media.

From 2003 to 2017 "Erhard Grundl Tonträgervertrieb" in cooperation with Cargo Records Germany. Solo albums: Erhard & Missouri title: this is not our scene 2001. As Clearwater 63 title: "there is only one" (2017). 1987 to 1997 member of the rock band Baby You Know; 1991 to 2017 distribution manager in the independent music industry.

Since 2004 with the Greens; 2004 to 2008 district chairman; since 2008 city councillor in Straubing; since 2012 district chairman of the Lower Bavaria Greens; 2014 to 2017 parliamentary group chairman in the city council; 2015 to 2017 member of the state committee; 2015 to 2017 delegate to the state council.

Memberships (selection): Parliamentary Forum for Club Culture and Nightlife; Member of the Board of the Kulturpolitische Gesellschaft, Sozialverband VdK; Box-Club Straubing e.V.; Dienstleistungsgewerkschaft ver.di; Erzeugergemeinschaft Energie Bayern (Supervisory Board); Member of the Board Arbeiterwohlfahrt Straubing; Fan-Radio "Straubing Tigers on Air".