Research Microfilm Publishers Studies in Musicology. Series A: I. "The Early Piano and Its Influence on Keyboard Technique and Composition in the Eighteenth Century"by Carl G. Parrish;Research Microfilm Publishers Studies in Musicology. Series A: II. "A thematic catalogue of Haydn's Settings of Folksongs from the British Isles"by Karl Geiringer;Research Microfilm Publishers Studies in Musicology. Series A: III. "The Concept of Musical Romanticism in the Light of the Comparative Criticism of Style"by Paul L. Frank