Thank you so much :) ! I think maybe that could be because some of the colours (eg blue and cyan) are quite similar, I am planning on differentiating them or changing the colours in the future!
that would be awesome just so it doesnt feel unfair. an idea would also to have symbols associated to the colors as well like circle is pink square is blue. and the symbols could be coming out of the speakers. that way it is colorblind friendly! Thanks for responding!