יְהוִ֤הּ אֲדֹנָי֙ חֵילִ֔י וַיָּ֤שֶׂם רַגְלַי֙ כָּֽאַיָּל֔וֹת וְעַ֥ל בָּמוֹתַ֖י יַדְרִכֵ֑נִי לַמְנַצֵּ֖חַ בִּנְגִינוֹתָֽי׃
주 여호와는 나의 힘이시라 나의 발을 사슴과 같게 하사 나로 나의 높은 곳에 다니게 하시리로다 이 노래는 영장을 위하여 내 수금에 맞춘 것이니라
Rashi
To the conductor [to play] with my melodies To the Levite who conducts the music in the Temple. I will compose for him [the Levites’ conductor] with my melodies, and the Levite[s] will accompany him with musical instruments.
Rashi
To the conductor As it is stated (Ezra 3:8) “... appointed the Levites from twenty years old and upward to superintend the work of the house of the Lord.”
Rashi
with my melodies This is an expression of a vocal melody to raise and lower, orgenedors in O.F.