The Piano Sonatas of Rodolfo Halffter (b. 1900, Madrid, Spain) represent an important body of literature not widely known nor understood for their historical importance and Spanish heritage. The entire development of Halffter's compositional style, which embraces three periods of composition, may be traced through these sonatas. The modes of composition may be seen not to be separate and distinct but as having inter—relationships which therefore affect the outcome of Halffter's final dodecaphonic technique. The culmination of his serial method is found in the Tercera Sonata, op. 30. At first glance, this work appears to be a radical departure from the former styles. However, a more in-depth study reveals this sonata to be the logical outgrowth of earlier compositional techniques, thereby blending diverse, eclectic elements into a unique and homogenous application, all Halffter's own. Forced to flee his native country in 1939, Halffter became the first composer in Mexico to use twelve-tone techniques. Together with Carlos Chavez, he exerted great influence on the present generation's group of Mexican composers. Halffter today remains a crucial link in the continuation of the Spanish tradition as exemplified by his former mentor, Manuel de Falla. A brief explanation of Falla s theory of resonance including sketches in Falla's handwriting as well as portions of the unpublished analysis of Halffter's Tercera Sonata are presented, perhaps for the first time. This study reveals how Halffter manipulates many Spanish elements which are found in the ancient cante iondo and the string tunings of the guitar in addition to the use of acciacaturas and the internal rhythm of Domenico Scarlatti into a personalized idiom which remains apparent throughout all his compositional styles. An analysis of Halffter s Tercera Sonata shows that the final period is characterized by a unique blending of Falla's "apparent poly-tonality" with the twelve-tone system of Arnold Schoenberg.

In my thesis, Performing a Political Shift: Avant-Garde Music in Cold War Spain, I argue that towards the end of the 1950s the Spanish ultra-conservative regime of Francisco Franco started to promote avant-garde music. This music contrasted with the aesthetically conservative one that had been promoted since the end of the Civil War (1936-1939). I examine the causes of this shift and reveal for the first time that they are connected to specific trends in Spanish politics and policies. In terms of national politics, the second phase of the Spanish dictatorship, from the late 1950s until Franco’s death in 1975, was dominated by young ministers who wanted to distance themselves from previous cabinets, mostly controlled by ultra-nationalist fascist politicians. These younger politicians styled themselves as part of a ‘technocratic’ regime. Thanks to its supposed ‘objectivity’ and ‘purely musical’ ideology-free concerns, avant-garde music sat well with these technocrats’ views of modern Spain, that is, a country benefitting from ‘objective’, ideology-free progress. On an international level, the defeat in the 1940s of Mussolini and Hitler, Franco’s main allies, had resulted in isolation for Spain. In order to break this isolation, the Spanish regime started to make a sustained effort at the end of the 1950s to establish diplomatic relations with other Western countries. These relations resulted in cultural, economic and military agreements with European democracies and the US. I also consider why recent Spanish musicology has failed to confront the political implications of the promotion of avant-garde music under Franco. I connect this void with the Spanish transition to democracy (1975-1978), which recent historians have called an exercise in amnesia, a discourse of forgiveness meant to promote reconciliation between Spaniards. As a result of this transition, the political implications of the activities of the composers and musicologists during the Franco years have been ignored or forgotten. The results of my thesis challenge the widely accepted view of the European avant-garde as a left-leaning movement. The main contribution of my thesis is precisely its substantial consideration of the cultural and political meanings of the avant garde and its context, using Franco’s Spain as a case in point.

Cristóbal Halffter, born in 1930, established himself as an important figure in Spanish avant-garde composition in the middle of the twentieth-century. As one of the prominent leaders of the Generación del 51, he helped establish modernity in music as a part of Spain's identity. His compositional style mixing tradition with the avant-garde was built on the success and breakthrough of Manuel de Falla, a composer with close ties to Halffter's family and served as a 'father figure' to the Generación del 51. This study begins with a discussion on Falla's work and reception, as he lay the groundwork for modernism in Spanish music. Further, discussion on Halffter's background and compositional periods, from his nationalist approach in the 1950s to his embrace of the avant-garde in the 1960s and beyond exemplifies Halffter's prominent role in shaping Spanish modernity. This research then sheds light on previously unexplored solo flute works Debla [Solo VI] for Flute and Studie II [Solo III] for Flute by Halffter. Provided is insight to their respective influences (the Spanish debla and the Fibonacci sequence), analysis of each work, and a discussion on their similarities and differences. By taking an informative approach prior to analysis and performance suggestions, readers will gain insight to Halffter's Spanish roots as they relate to nationalism and the avant-garde, his affiliation with the Generación del 51, and his compositional style.