!!!pid:				pid5667230-18
!!!performer:			Friedman
!!!year:			1930
!!!track_duration:		122.031 seconds
!!!mazurka_id:			mazurka67-4
!!!mazurka_title:		Mazurka in A Minor, Op. 67, No. 4
!!!performance_beats:		289
!!!performance_duration:	116.712 seconds
!!!performance_avg_tempo:	MM 148.57