One problem is that viewers can't compare some parameters visually. For example, the "Instrumentalness" and "Acoustic" are relatively too small in the chart. I can't really distinguish the "Instrumentalness" value between BIGBANG and BTS. One possible way to improve this chart is to draw a chart for each parameter. Or, just extract those small parameters like "Instrumentalness" and "Acoustic" out and make another chart for these small values.