Sure. 99% of the white musicians at that time were total sellouts who played extremely straight, boring, conservative and no-frills music without any embellishm

Sure. 99% of the white musicians at that time were total sellouts who played extremely straight, boring, conservative and no-frills music without any embellishment or soul. The most obvious difference is the energy level and "rawness" of songs - those white bands had really carefully choreographed performances with minimal deviation, even solos were often written out in similar big bands. Black musicians often shouted, yelled or mugged during performances - all of these are completely absent in white performances at that time.