Complex sentence: The band regularly holds concert events commemorating significant turning points of its career such as the release of their classic, self-titled debut album in 1980 which earned national recognition and breakthrough for Edda Művek, establishing the band as a professional musical outfit.
Split into simpler sentences: The band regularly holds special concert events commemorating significant turning points of its career. The release of their classic, self-titled debut album in 1980 earned national recognition and breakthrough for Edda Művek, establishing the band as a professional musical outfit.