trumpet, percussion, piano and viola. RJ, 1974 Estruturas Obstinadas (1974): trumpet, horn, and trombone. Petrópolis, 1977. Estruturas Verdes (1976): Violin, violoncello, and piano. Rio de Janeiro, 1977. Estruturas Divergentes (1977): flute, oboe, and piano. Belo Horizonte, 1978. Cárceres (1979): percussion ensemble for 4 musicians. Buffalo, NY, 1980. Quarteto de Cordas nº 2 "Brasília" (1979). São Paulo, 1983. Texturas (1987): two harps. Vienna, Austria, 1987. Transparências (1987): Vibraphone and piano. Rio de Janeiro, 1987. Delaware Park Suite (1988): saxophone alto and piano. Los Angeles, 1989. Light and Shadows (1989): vibes, percussion, harp, bass clarinet, and double bass. Los Angeles, 1989. Omaggio a Mignone (1997) wind quintet and piano. Rio de Janeiro, 1997. Evocação a Lorenzo Fernandez (1997): guitar and flute. Rio de Janeiro, 1997. Quarteto de Cordas nº 3 "Bellagio" (2000). Milan, 2000. Natureza Morta (2000): Flute, Clarinet, Violin, and Cello. Quarteto Informal (2004): Flute, trombone, piano, bass guitar. Xilogravura (2004): Viola and Piano Bigger Ensembles Estruturas Sincréticas (1970): piccolo, clarinet, bass clarinet, 2 horns, 2 trumpets, trombone, 4 timpani, 4 groups of percussion. Rio de Janeiro, 1972. Estruturas Primitivas (1975): flute, oboe, horn, piano, viola, and cello. RJ, 1975 Rio/L.A. (1988): Engl. horn, brass quartet, marimba, perc. (1), piano, and electric bass guitar. LA, 1989. Giga Byte (1994): 14 winds and piano obbligato. Rio de Janeiro, 1994. Toccata Urbana (1999): Woodwind quartet, piano, and string quintet. New York, 2000. Seven Pieces for String Orchestra with and without soloists Concertino para Flauta e Orquestra de Cordas (1968). Rio de Janeiro, 1973. Concertino para Piano e Orquestra de Cordas (1977): [Sistrum, 1981]. RJ, 1978 Sinfonieta para Fátima (1986): String Orchestra. Rio de Janeiro, 1986. Pieces for Symphonic Orchestra Dia de Chuva (1963). Rio de Janeiro, 1964. Imagem Carioca (1967). Rio de Janeiro, 1969. Estruturas Sinfônicas (1976). Rio de Janeiro, 1978. Núcleos (1983). Rio de Janeiro, 1983. Hayastan (1990). São Paulo, 1993. Terra Aberta (1997): The Bible and D. Pedro Casaldáliga; soprano and symphonic orchestra. Rio de Janeiro, 1997. Toccata Sinfônica (2001). São Paulo, 2002 Computer Music Prisma (1989). Los Angeles, 1989. There are also 7 Cycles of Songs, some single songs for voice and piano and about 30 a cappella choir pieces Some CDs with Tacuchian's music Estruturas/Structures, Tacuchian Anos 70/ Tacuchian in the 1970s (RioArte Digital) Imagem Carioca: Música para Violão de R. Tacuchian (ABM Digital). Tacuchian’s guitar music Carnaval/Carnival. Music from Brazil and the U.S. (North/South Recordings) Toccarta Urbana. The