!!!pid:				pid9061-19
!!!performer:			Uninsky
!!!year:			1959
!!!track_duration:		90.049 seconds
!!!mazurka_id:			mazurka30-2
!!!mazurka_title:		Mazurka in B Minor, Op. 30, No. 2
!!!performance_beats:		193
!!!performance_duration:	84.25 seconds
!!!performance_avg_tempo:	MM 137.45