Many songs concern events from Albanian history and culture, including traditional themes of honour, hospitality, treachery, and revenge. The first compilation of Albanian folk music was made by two Himariot musicians, Neço Muka and Koço Çakali, in Paris, during their work with Albanian soprano Tefta Tashko-Koço. Several gramophone compilations were recorded at the time by the three artists, which eventually led to the recognition of Albanian iso-polyphony as a UNESCO Intangible Cultural Heritage.