Abstract: The present disclosure relates to methods, techniques and systems for dynamically synchronizing complementary broadcasting content for supplementing audio broadcasting with audio context sensitively synchronized complementary broadcasting content items. An audio broadcasting content, e.g. a radio broadcast by a radio station is supplemented by complementary broadcasting content, e.g. still or moving images such that the transmission and playback of the complementary broadcasting content (e.g. a video) is synchronized with a current audio broadcasting (e.g. a piece of music) by dynamically taking into account the audio context of a user listening to the current audio broadcasting.