The purpose of this project is to bring to light three concert works by Theodor Albin Findeisen (1881-1936), namely Nixenreigen, Elegie, and Romantische Suite, and prepare them for use by modern double bassists. Save for Findeisen's compositions, which are largely out of print and unknown, the Late Romantic Austro-German school of composition is not represented in the double bass concert repertory. To establish the historical significance of Findeisen's concert works for double bass, this document includes background information on the composer and his work. This research culminates in the creation of newly arranged, transposed, transcribed, and edited performance editions that are informed by Findeisen's methodology and by modern performance techniques. This document addresses editorial decisions in creating these new editions.