The Genizah PsalmsThese psalms have been translated for the More Old Testament Pseudepigrapha Project by G. W. Lorein and E. van Staalduine-Sulman with the view that they are earlier rather than later.
A Study of MS 798 of the Antonin Collection. Cambridge Genizah Studies Series
David Stec
The Genizah Psalms (MS 798 of the Antonin Collection) is a Hebrew document of messianic character, apparently presenting itself as the work of David. It is taken by some to date to the time of the second temple, and to be approximately contemporary with some of the literature of Qumran, while others regard it as a medieval composition. From the point of view of a classical hebraist, David M. Stec explores how this text relates to classical Hebrew literature as a whole and considers how viable it is to regard it as a genuine constituent of that body of literature. He presents an edition of the Hebrew text and English translation, together with an introduction, commentary and analysis of language.
Oh, and have I mentioned that the first volume of MOTP texts is due out in September: Old Testament Pseudepigrapha: More Noncanonical Scriptures? We're currently working on the page proofs.