<P> Some scholars argue that "ritornello form quickly disappeared as a general constructive principle" in the early years of the nineteenth century, due to the structural innovations of Beethoven . Others such as William Caplin suggest that the ritornello form did not disappear, but "was transformed into concerto form through the incorporation of classical formal functions, especially those associated with the sonata ." Caplin argues that the outlines of ritornello form persist in the alternation of solo and tutti sections, albeit subsumed within the tonal and formal plan of the sonata . </P> <P> Ritornello construction faded with the advent of the new sonata form but received renewed interest in the 20th century . </P>

Explain the organization of the ritornello form as found in the concerto grosso