The etude of vocal music used most in Japan is <50 Le çons de Chant< (<CONCONE 50<) by G.Concone. Singing little uses etude unlike instrument music. <Twenty elementary and progressive vocalizes< (<ITALIAN MARCHESI<) is an etude for beginners same as <CONCONE 50<. A point worthy of special mention is that there is a text of Italian. It is a characteristic in the motif that has elegance and the beauty such as the canzone. This etude is not only technique but also various factors of the music expression are acquired at the same time. Therefore, it is a valuable superior etude. The purpose of this study is to consider the value of <ITALIAN MARCHESI< as educational material.