Genres by song and not artist

I would prefer if the genre is linked to the song instead of the artist.

Artists are not limited to the same genre by assign more genres to one artist it messes up the whole statistic - for some artists I just listen to certain songs because I am not into the other genres but the other genres are still shown in the genres I listened to.

Collaborations mess everything up even more - I listened to a song with 28 artists (real example) - so by listening to this one song one time it counts about 28 times for the same genre because the minutes for every artist add up. Not everyone of the 28 artists has the same genre assigned - but still. In the end the minutes for genre never add up to the actual time listened to music what makes this criteria kind of useless for me but I would be interested in real numbers.