attackavg_loudnessb10b11b12b5b6b7b8b9brightnessflatnessbrightnessb9b8b7b6b5b12b11b10avg_loudness
−1−0.500.51Correlations of 12 Timbre Features in UCI Training Set (463715 records)Source and for more info: 1. Million Song Dataset, 2. UCI Year Dataset