i suddenly remembered what my piano teacher said to me about this theory method that i should always remember when im grouping piano notes! she said no matter what happens, everything in couples are always better, simpler way is to say that triplets or fifth or anything that is in odd numbers are not good! not good. andd why? causeee.. couples are always together in a very good way, but wad about the other one left behind? all alonee, cause in triplets, there's always two that are always better along after all. so add another one, wouldn't it be perfect?