Beta Phi Mu International Library & Information Studies Honor Society. (1991 – Present).
Secretary/Treasurer, Texas Chapter Music Library Association. (1989 – Present).
International Dickens Fellowship, Denton Branch. (1980 – Present).
Pi Kappa Lambda National Music Honor Society. (1971 – Present).
The Honor Society of Phi Kappa Phi. (1970 – Present).
Music Library Association. (February 1989 – February 2024).
member, American Musicological Society, Texas chapter. (2015 – 2016).
Arnold, D. M. (Author & Presenter), Texas Chapter of the Music Library Association, Picture This: the University of North Texas Library Through the Years, University of North Texas, United States of America. (2023 – ).
Arnold, D. M. (Author & Presenter), Texas Chapter of the Music Library Association annual conference, The Research Excursion of a Lifetime: How Serge Jaroff's Choir of Don Cossack Refugees Burnished My Reference Arsenal, Texas Chapter of the Music Library Association, Baylor University and virtual, United States of America. (2022 – 2022).
Arnold, D. M. (Author & Presenter), TMLA/NEMLA/Mid-Atlantic chapter joint meeting [Music Library Association], We Cosset Our Special Collections: But Who Cares?, Texas Music Library Association, New England Music Library Association, Mid-Atlantic Music Library Association, virtual, United States of America. (2021 – 2021).
Arnold, D. M. (Author & Presenter), Annual conference, Texas Chapter, Music Library Association, A Belgian Hero, a Russian Outlaw, and the Perils of Scholarly Transformation, Texas Chapter, Music Library Association, Hardin-Simmons University, Abilene, TX, United States of America. (2016 – 2016).
Arnold, D. M. (Author & Presenter), Annual conference, Texas Chapter, Music Library Association, "Serge Jaroff and His Don Cossack Choir: Two Rare Scores in the University of North Texas Music Library", Texas Chapter, Music Library Association, University of Texas, Austin, United States of America. (2015).
Arnold, D. M. (Author & Presenter), Evans, B. (Author & Presenter), Annual conference, Music Library Association, "Talkin' to Texans and Other Americans: Music Oral History Project Perspectives: TMLA and its Oral History Project”, Music Library Association, Oral History Committee, Dallas, TX, United States of America. (2012 – 2012).
Arnold, D. M. (Author & Presenter), Annual conference, Music Library Association, "Jazz Collections and Performance Practice at UNT: WFAA and WBAP Collections at the University of North Texas Music Library”, Music Library Association, United States of America. (2012).
Arnold, D. M. (Panelist), Annual Meeting of the Music Library Association, Public Services Town Hall meeting, Music Library Association, virtual, United States of America. (2021 – 2021).
Feustle, M. (Panelist), Arnold, D. M. (Panelist), Jocoy, S. (Panelist), Whealton, V. (Panelist), Texas Chapter of the Music Library Association / Southwest Chapter of the American Musicological Society, It Slices, It Dices, It Juliennes: The Versatile Toolkit of Combined Musicological and Librarian Skills, TMLA / AMS-SW, Zoom, United States of America. (2020 – 2020).
Arnold, D. M. (Author & Presenter), Annual conference, Texas Chapter, Music Library Association, "Schoenberg's Punk Rocker: the Radical Transformations of Dika Newlin", Texas Chapter, Music Library Association, University of North Texas, United States of America. (2014).
Arnold, D. M. (Author & Presenter), spring conference, Southwest Chapter, American Musicological Society, "Serge Jaroff and the Don Cossack Choir: the State of Research in the 21st Century", American Musicological Society Southwest Chapter, University of North Texas, United States of America. (2015).
Arnold, D. M. (Author & Presenter), Hartsock, R. (Author & Presenter), Annual conference, Music Library Association, “Thinking outside the box: finding publishing opportunities in unexpected places", Music Library Association, Atlanta, GA, United States of America. (2014).
Arnold, D. M. (Author & Presenter), Annual Conference, Music Library Association, Traditional and Electronic Resources in Music Research, Music Library Association, Portland, OR, United States of America. (2018).
Arnold, D. M. (Author & Presenter), Annual conference, Music Library Association, Reference and research tools for Latin American music : Music in Latin America and the Caribbean: an encyclopedic history by Malena Kuss, Music Library Association, Orlando, FL, United States of America. (2017 – 2017).
Committee Member, UNT Libraries Scholarship and Awards Committee. (September 9, 2023 – Present).
Committee Member, Circulation Workgroup. (2005 – Present).
Committee Member, University Undergraduate Curriculum Committee. (2015 – 2022).
Faculty Mentor, library mentoring program. (September 2016 – August 2017).
Committee Member, Scholarly Communication Transformation Workgroup. (2014 – July 2017).
Committee Member, Search Committee for copyright librarian. (December 2016 – May 2017).
Member, Personnel Affairs Committee. (2010 – 2012).
Member, Oversight Committee for the Core Curriculum. (2004 – 2010).
Member, Personnel Affairs Committee. (2006 – 2008).
Committee Member, Music Library Association Nominating Committee. (March 7, 2023 – Present).
Board of Advisors, Krum Public Library, Krum, TX. (2001 – Present).
Editorial Review Board Member, Music Reference Services Quarterly [journal]. (2000 – Present).
Committee Member, Music Library Association Public Services Committee. (February 2018 – March 2022).
Committee Chair, Music Library Association Reference Souces Subcommittee. (February 2018 – March 2022).