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Kathryn Hartgrove
Kathryn Hartgrove has been described as a mezzo-soprano of precision, range and sheer splendor. She has performed solo recitals in Europe, South America and the United States and has been heard on radio and television in Brazil, Turkey and the United States. Her many roles include Judith in Bluebeard s Castle, Suzuki in Madame Butterfly, Thisbe in La Cenerentola, Siebel in Faust, Emilia in Otello and Santuzza in Cavalleria Rusticana with such companies as Lyric Opera of Kansas City, San Francisco Opera, New York City Opera's National Tour, Chicago Opera Theater, Łodz National Opera of Poland, Chamber Opera of Chicago, Piedmont Opera Theater and Opera Maine. She has performed as Soloist with the Istanbul National Symphony, the Pesaro Chamber Orchestra in Italy, the Grant Park Symphony, the Hinsdale Chamber Orchestra, the Lake Shore Symphony, the Millikin-Decatur Symphony and the Beloit- Janesville Symphony. Her most recent concert engagements include performances of Schoenberg’s Pierrot Lunaire in Nuremburg, Germany and the Dimitria Festival in Thessaloniki, Greece; Pergolesi’s Stabat Mater at the Pasqua Festival in Ravenna, Italy; concerts in Poland at the Krakow Opera House; concerts at the Trujillo Bach Festival in Trujillo, Peru, recitals in Bauru, Campinas, Uberlândia and São Paulo, Brazil and the Atelier Concert Series in Paris, France.

Brazilian tenor, Sidnei Alferes performs in opera, oratorio and recitals. His upcoming performances include the roles of Ramiro in Rossini's La Cenerentola and Le Prince Charmant in Massenet's Cendrillon
Recent performances include the role of Don Basilio e Don Curzio in Le nozze di Figaro. Other performances include the tenor solos in Handel's Messiah, Britten's cantata Rejoice in the Lamb with the Piccolo Spoleto Festival; the roles of Don Ottavio, in Don Giovanni, with Paradigm Orchestra; Remendado, in Carmen at Georgia State University; and Paolino in Il matrimonio segreto in the Voci nel Montefeltro Festival, Italy. Mr. Alferes has Masters’ Degrees in Music from Universidade Estadual de Campinas, Brazil, and also from Georgia State University, with concentration in Vocal Performance. In Brazil, he was awarded the São Paulo Research Foundation Scholarship. He also received grant from Fulbright for his master studies in the USA; In 2010, he served as an Artist Affiliate in Music at Agnes Scott College teaching Voice and Opera Workshop. In the Summer of 2013, Mr. Alferes acted as Company Manager at Harrower Summer Opera Workshop, and co-founded FIO AMERICAS. Currently, he is finishing his doctoral degree in vocal performance at The University of Utah. 

Adriana Kayama
Brazilian soprano, Adriana Kayama, has performed throughout Brazil, North America and Europe in La Clemenza di Tito, L’incoronazione di Poppea, Les contes d’Hoffmann, Die Zauberflöte and Der Schauspieldirektor. Ms. Kayama has also performed with the Campinas Symphony Orchestra, São Paulo State Orchestra, Jazz Symphonic Orchestra and the Bahia Symphony Orchestra. She received the Orquestra Sinfonica do Estado de São Paulo Young Soloist Award in1984, and was semifinalist at the XII International Voice Competition in Rio de Janeiro in 1985. She holds degrees from Universidade Estadual de Campinas and the University of Washington. She is the head of the vocal program and voice professor of the Arts Institute at UNICAMP where she teaches voice, diction, vocal pedagogy and chamber music.  She is presently the Assistant Director of the undergraduate music course at UNICAMP.  From 2003 to 2007 Ms. Kayama was the president of the National Association of Research and Graduate Studies in Music (ANPPOM).