The two orchestral pieces, written in the period of 2009-2010, are tone poems that demonstrate the development and combination of tonal melodies along with a coherent and effective use of orchestration to express different emotions inspired by two imaginary places. This thesis analyzes different aspects of the pieces based on their melodic construction and the use of the orchestra as the main instrument. This document also discusses the influence of specific composers and orchestral pieces, and the main historical style of the compositions. / by Raul Rivera. / Thesis (M.A.)--Florida Atlantic University, 2010. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2010. Mode of access: World Wide Web.