Biography
Grupo Ecuacion
Real name: Grupo Ecuación
Effective period / Period of releases: 1974
Members: Richard Osores
Peruvian salsa / beat group, also known as Ecuación or Ecuación Púrpura, created in 1971, active until 1981 with Richard Osores (guitar), Tito Rojas (vocals), Miguel Reyes (bass), Aquilino Pacheco (saxo), Jaime Ortiz (keyboards), Jorge Serpa (percussion), Willy Culque (drums)