On the other hand...
Here is a link to study by Roland showing *very* significant gains in audio performance:
"Summary and Analysis: The results of the benchmarks were surprisingly good! Windows 8 performed better than Windows 7 across the board in all categories, and in many cases with fairly dramatic performance gains."
Anyone involved either as a professional or a serious amateur is going to have to look carefully at Win 8 and decide if the gains available in performance are worth the discomfort of the its Metro/Classic split personality.