Isn't the innovation of public symphony concerts (and the establishment of suitable orchestras) an important factor in driving the process? At any rate the traditional repertoire (i.e. pre-HIP) used to begin with Mozart and Haydn (with the exceptions of Bach and Handel), coinciding with the beginning of the tradition of public concerts and the establishment of orchestras.
About Schoenberg: His analysis is very plausible but maybe his solution less so. He seems to have overlooked (or not cared about) the crucial role tonal harmony plays in the construction of large forms.
About Schoenberg: His analysis is very plausible but maybe his solution less so. He seems to have overlooked (or not cared about) the crucial role tonal harmony plays in the construction of large forms.