Sabina Puértolas and Rubén Fernández Aguirre, through their masterly interpretation of six Italian and six Spanish songs, immerse us in the seductive plasticity of the two-faced sound universe of the Navarrese composer Emilio Arrieta, a member of the "bella armata armonica" (beautiful harmonic army) - using Donizetti's words - trained in the 1940s at the Milan Conservatory, who cultivated his instinct in the paradise of La Scala Theatre. Let us be captivated by the beauty of this repertoire, of immense quality and interest, which returns to the music stands of the 21st century, thus revealing part of our past. Los Cisnes en Palacio (Swans in the palace) by Alberto García Demestres, draws from many musical sources, both popular and cultured, from a viewpoint and use of contemporary tools in favour of the lyricism of sound and the emotive understanding of phrasing. It is, of course, a work of great difficulty. This tour de force is made up of cadences/moan, acuti and sovracuti senza tetto, a wide palette of colours and emotions.