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In page Mina (Italian singer):

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When she altered her musical style in 1969, Mina changed her hairdo from short and straight to long blonde curls, and started to wear a black minidress. Mogol's and Lucio Battisti's first songs, particularly "Insieme" and "Io e te da soli",[1] showcased Mina's blues and soul skills. Around the time of their collaboration, Mina turned toward middle-of-the-road pop.[2] Battisti's melodies were sophisticated and had a complex chord sequence. The songs were characterized by frequent changes of rhythm, pauses, and dialogues between the voice and the orchestra.[3] Another characterizing feature was an instrumental introduction without a rhythmic base.[citation needed]