Kicking off our roundups of the best music of 2018, polled from votes by more than 50 Guardian music writers, we count down our favourite tracks of the year – topped by a man who managed to unpick US racial politics, launch a thousand thinkpieces and reach No 1 in the US charts, all with a single track. Read about the top 20 below, and hear the whole top 100 in playlists on Spotify and Apple Music. We’ll be counting down the albums of the year throughout the rest of the month, with No 1 announced on 21 December.