Listen to Folk Songs for Mezzo-Soprano and 7 Instruments: VIII. Mottetu de tristura (Sardinia) online. Folk Songs for Mezzo-Soprano and 7 Instruments: VIII. Mottetu de tristura (Sardinia) is an English language song and is sung by Altinoglu Alain and Nora Gubisch. Folk Songs for Mezzo-Soprano and 7 Instruments: VIII. Mottetu de tristura (Sardinia), from the album Folk Songs, was released in the year 2016. The duration of the song is 1:48. Download English songs online from JioSaavn.