Jeduthun = "praising"
1) a Levite of the family of Merari and the chief of one of the 3
choirs of the temple whose descendants also formed one of the
perpetual temple choirs; he is named at the beginning of 3 Psalms
(#Ps 39:1; 62:1; 77:1) either as the composer or the recipient
of those Psalms but most likely as the leader of the choir by which
those Psalms were to be sung