One of the difficulties of nineteenth-century form studies is ambiguity in ascertaining which formal types are at work and in what ways. This can be an especially difficult problem when multiple formal types seem to influence the construction of a single composition. Drawing on some recent innovations in form studies proposed by Steven Vande Moortele, Janet Schmalfeldt, and Caitlin Martinkus, I first develop a set of analytical tools specifically made for the analysis of sonata/variation formal hybrids. I then refine these tools by applying them to the analysis of two pieces. Chopin's Fourth Piano Ballade can be understood from this perspective as primarily following the broad outlines of a sonata form, but with important influences from the recursive structures of variation forms; Franck's Symphonic Variations, on the other hand, are better viewed as engaging most of all with multiple variation-form paradigms and overlaying them with some of the rhetorical and formal structures of sonata forms. I conclude with a brief speculation on some further, more general applications of my methodology.