I'm probably setting myself up to be branded a philistine, but I have long thought nothing speaks more loudly of modern composition's bankruptcy than the existence of this academic cottage industry that "completes" little fragments abandoned by the great composers of earlier eras. Schubert has been a particularly fertile ground for this stuff, but Beethoven and Bach also have their share of "reconstructions." With one exception, I have yet to hear one of these things that I found convincing. The exception: Ernst Krenek's completion of the Schubert "Reliquie" sonata. Krenek, however, was himself a significant composer, not merely a habitue of the ivory tower, and Schubert left quite a bit of uncompleted material for the sonata from which Krenek could take his cues. Is it what Schubert would have written, had Schubert finished the thing himself? No, certainly not, and maybe not even all that close. But it works. OK, the completion of Puccini's Turandot is probably another--but, again, it wasn't the work of an academic but of a successful composer (and a major conductor; Toscanini had a hand in it, too, if I'm not mistaken) who knew Puccini well and had a good idea of what he had in mind before his death.