He is vice president of the Sinfonía Concertante Foundation of Panama, an honorary academic adviser to the Alfredo Saint Malo Music Festival, and violin/viola instructor at the Brooklyn Conservatory of Music, the Washington Heights Community Conservatory of Fine Arts, and the Lucy Moses School. He has performed and/or given master classes in the Bahamas, England, France, Japan, Italy, Spain, the United States, and Uruguay.
Mr. Casal has held the position of Principal Violist ad honorem of the National Symphony of Panama, Principal Violist of the Laredo Philharmonic Orchestra, Concertmaster of the Butler Symphony Orchestra in Butler, Pennsylvania, and guest concertmaster of the Altoona Symphony Orchestra. He is co-founder and member of the Camerata Alfredo De Saint Malo, and currently performs as concertmaster of the ADCA Symphony Orchestra, principal violist of the Brooklyn Chamber Orchestra, and violist of the Paramount Chamber Players.
Recent commitments have included performances and tour with his brother Isaac’s project, Ensemblast. Casal is also enthusiastic about collaborating with modern composers having premiered pieces by Dinos Constantinides, Carlos Bernales, Alexandra Dubois, Jorge Figueroa, Mikolja Gorecki, Howard Lew, Ricardo Risco, and Bartosz Smoragiewicz.