לַמְנַצֵּ֥חַ עַֽל־יְדוּת֗וּן מִזְמ֥וֹר לְדָוִֽד׃
Przewodnikowi chóru Jedutunów, pieśń Dawida.
Rashi
to Jeduthun The name of one of the singers, and there was also a musical instrument called Jeduthun. According to the Midrash Aggadah (Song Rabbah 4:1 [4]): concerning the edicts (דתות) and concerning the distressing laws and decrees that are decreed upon Israel.