Resumo:
The following research aims to observe and define the different types of improvisation and the degrees of freedom, related to indetermination and randomness, proposed by the composer to the interpreter in avant-garde works of the twentieth century. Considering some difficulties and lack of familiarity, presented by a considerable part of concert music instrumentalists when dealing with works that require the use of improvisation, the research seeks to map the levels of freedom and control to ascertain which facilitating methods can best guide the interpreter. The work also seeks to explain which experiences lead the popular musician to present greater dexterity in this practice, through composition strategies. And as a compositional proposal, this work will feature a work composed from a game involving control and freedom, accompanied by an analytical memorial as a final product.
