 <translate> Because people are playing harmonica and guitar doesn't mean is a bluegrass concert. Final answer: it is not possible to tell. <yor> Kì í ṣe nítorí pé àwọn èèyàn ń fi ahọ́n àti gìtá ṣeré ló mú kó jẹ́ àríyá bluegrass. Ìdáhùn tó gbẹ̀yìn: kò ṣeé ṣe láti sọ. 