Sub Rosa present Octavian Nemescu's Gradeatia - Natural 1973-83. Nemescu was born in Pascani, Romania in 1940. He studied composition with Mihail Jora at University of Music in Bucharest. While still a student, he imposed himself as part of avant-garde movement in Romanian music composition. After 1965 he produced works of the "open creation" type, a blending of conceptual and environmental music. He involved himself after 1967 in the Romanian spectral trend. Starting with the work Concentric (1969), his creation received archetypal vocation by cultivating an aesthetic of the essential. Octavian Nemescu cultivated the archetypal goals on all parameters and musical forms. He is the author of Implosive Music and of Imaginary Music. He composed Multi-, Post-, Non- and Pre-Symphonies. Later, he became interested in music with initiation character, developed in a non-spectacular, ritualistic atmosphere, as a chance to reinvigorate the old mysteries and as a modality of awakening from biological, mental and spiritual sleep. Gradeatia was composed in 1982, commissioned by the Electroacoustic Music Studio in Gent (Belgium), where it was elaborated. It was conceived as ambient music for Voronet Monastery in Moldavia, as an electronic-audio fresco paralleling the existing one, embracing the idea of mural-visual consistency. It happened in a historic moment when the communist regime in Romania demolished many churches, and was conceived as a protest to these actions. Natural was composed in 1973, in its first version, and again in 1983, in a final version. This music has a spectral aesthetic orientation and at the same time, process-based and archetypal orientations.