As shamisen came down with only an instrument without scores, many new songs were composed one after another by the Heike biwa players and various musical elements of the Heikyoku were reflected.
また三味線は楽器のみが伝わり楽曲は伴わなかったため、彼らにより新曲が次々に作り出されたが、その際にも平曲の音楽的要素が色々反映されている。