The Passion of Yeshua (Part I-[II]) (2017) (Short Score in the Composer's Manuscript, for Perusal Only). Autograph musical manuscript of the complete work for SATB Chorus and orchestra. Together with photocopies of both parts with autograph corrections.
A Woman's Life for Soprano Solo and Orchestra. Autograph musical manuscript full score signed "R. Danielpour" and dated 2007 at upper right corner of page 1 and with "Thanks be to God New York 9/25/2007" at conclusion. With text by the distinguished African-American poet, singer, memoirist, and civil rights activist Maya Angelou (1928-2014).
Contract assigning rights to de Koven's operetta Foxey Quiller to the New York publisher Edward Schuberth & Co., signed in full by de Koven in black ink at conclusion and dated in typescript August 8, 1900