Latin American art song is a genre primarily of the first half of the twentieth-century, when popular folklore served as the voice and inspiration of many poets and musicians. The nationalist movement served as a means of expression, each Latin American country with its own identity. There is great benefit for singers to study Spanish diction at an academic level, since it is a language already familiar to most U.S.A residents. There is a significant amount of unknown repertoire that would be very useful in the singing studio because of the language's open vowels. This repertoire can also serve as a confidence-builder to young Spanish-speaking singers at the beginning of their training. I will be focusing on the (s), (ll), and (y) sounds as pronounced in the diverse regions of Latin America; in particular, why they matter when coaching singers, and the articulators involved in each. The purpose of this study is to discuss diction differences in the repertoire, expound on its benefits for voice pedagogy, all while informing about varied options for recital programming.