Table 1.

Performance features most characteristic of pianists' individuality, in performing five timbral nuances and overall.

Timbre: Performance features	Bright	Dark	Dry	Round	Velvety	All
ATTACK AND DYNAMICS
Hammer velocity	O	O	O	O	O	O
Difference in hammer velocity between hands	O	×	–	O	O	O
Variations in hammer velocity	O	O	O	O	O	O
Attack speed	O	O	O	O	O	O
Difference in attack speed between hands	S	–	×	O	×	×
Attack percussiveness	×	S	–	×	S	O
Attack duration	O	O	O	O	O	O
Variations in attack duration	.	.	.	.	.	O
Key depression depth	O	–	O	O	O	O
Variations in key depression depth	S	–	O	×	×	S
ARTICULATION
Articulation (intervals between chords)	O	O	O	O	O	O
Duration of sustained key depression	O	O	×	O	×	O
Release duration	×	×	O	O	O	O
Inter-onset interval	O	O	×	O	O	O
Melody lead	.	.	.	.	.	O
PEDALS
Soft pedal use	S	O	S	X	O	O
Soft pedal depression	S	×	×	X	O	–
Soft pedal mid-depression	S	S	×	S	O	O
Sustain pedal use	×	O	X	O	O	O
Sustain pedal depression	×	–	O	–	–	–

The following symbols were used for: O, feature included in the descriptive portrait of the timbral nuance; S, feature significant in highlighting pianists' individuality, but redundant with others; “.” (dots), feature not protected by the pianist-timbre interaction in the general ANOVA; the other features were not significant with regard to individuality, “−” (dashes), feature non-significant with regard to individuality, with low statistical power (π < 0.2), thus inconclusive; x; id., with average statistical power (0.2 < π < 0.8); X: id., with high statistical power (π > 0.8), thus conclusive.