@TLIK
there is no halachic source or precedence for assuring such music and getting involved in such things will become extremely arbitrary as the pilfering of non-jewish intros and usage of techniques learned from non-jewish influences have become extremely widespread. To my knowledge the only artist who doesn’t is Avraham Fried. This would also be extremely counterproductive as the whole point of having jewish music is so that people won’t listen to non-jewish as music is inherently assur.