File Nine Bagatelles, 1996 Box 18 In: William Bolcom and Joan Morris papers, circa 1950-2014, 2018, undated » Scores, circa 1950-2011 (scattered)
File Nine New Bagatelles, 2005 Box 43 In: William Bolcom and Joan Morris papers, circa 1950-2014, 2018, undated » Scores, circa 1950-2011 (scattered)
File Ninth Symphony, 2011 Box 71 In: William Bolcom and Joan Morris papers, circa 1950-2014, 2018, undated » Scores, circa 1950-2011 (scattered)
File Octet: Double Quartet Box 59 In: William Bolcom and Joan Morris papers, circa 1950-2014, 2018, undated » Scores, circa 1950-2011 (scattered)
File Open House 3 bundles Box 54 In: William Bolcom and Joan Morris papers, circa 1950-2014, 2018, undated » Scores, circa 1950-2011 (scattered)
File Orphee Serenade 1 bundle Bundle 25 In: William Bolcom and Joan Morris papers, circa 1950-2014, 2018, undated » Scores, circa 1950-2011 (scattered)
File Orphée-Sérénade Box 59 (see also Box 68) In: William Bolcom and Joan Morris papers, circa 1950-2014, 2018, undated » Scores, circa 1950-2011 (scattered)
File Orphée-Sérénade, 2009 Box 68 (see also Box 59) In: William Bolcom and Joan Morris papers, circa 1950-2014, 2018, undated » Scores, circa 1950-2011 (scattered)
File Phantasmos, op. 1 Box 29 In: William Bolcom and Joan Morris papers, circa 1950-2014, 2018, undated » Scores, circa 1950-2011 (scattered)
File Philippics, 1979 Box 18 In: William Bolcom and Joan Morris papers, circa 1950-2014, 2018, undated » Scores, circa 1950-2011 (scattered)