Authorship and Titles (or Superscriptions)
With the 150 psalms, merely 34 lack superscriptions of any kind (just 17 in the Septuagint, the pre-Christian Greek interpretation regarding the OT). These alleged “orphan” psalms can be found generally in courses III-V, where they have a tendency to occur in groups: Ps 91; 93-97; 99; 104-107; 111-119; 135-137; 146-150. (In e-books I-II, only Ps 1-2; 10; 33; 43; 71 shortage titles, and Ps 10 and 43 are in reality continuations for the preceding psalms.)