Most of what we know about the liturgical use of the Psalms, we know from the period of the second Temple. Yet many of the Psalms surely predate that period. The Psalter attributes around half the psalms to King David (84 in the Septuagint, the ancient Greek translation; 73 in the medieval Masoretic text). Others are credited to Moses, Solomon, Asaph, Heman, Ethan, and the Sons of Korah. Some of these people appear in the Old Testament narratives as renowned performers of sacred music