The Yotsutsuji family was from the House of Urin (holding military ranks) which adopted the Japanese harp as its family art and, every time sanpogakunin who were jigenin (a lower rank of ancient Japanese nobility) wanted to perform Japanese harps, they received one-day handing down which was effective for the day of the performance.
四辻家は和琴を家芸とする羽林家であり、地下人である三方楽人が和琴を弾奏する場合には、その都度その日かぎりの一日相伝を受けていた。