While at ASTA, Bloom joined the Smithsonian Puppet Theater, performing as part of Allan Stevens and Company in Washington and on tour throughout the United States for over two years.
He also wrote and directed the musical revues Cole Porter Revisited, The Unsung Jerome Kern, and Sweet and Hot: The Songs of Harold Arlen.
Bloom and Rudman's first studio record was Maxine Sullivan Sings the Great Songs of the Cotton Club by Harold Arlen and Ted Koehler.
Bloom has also produced albums devoted to the talents of Mabel Mercer, Susan Johnson, three CDs with jazz great Barbara Carroll, three jazz CDs with pianist/singer Eric Comstock, Sylvia McNair, opera diva Amy Burton (Opera News Recording of the Month), Lorna Dallas, Eric Michael Gillette, Jamie DeRoy, Stacy Sullivan, Barbara Fasano, Mark Murphy, and others.
With Josh Wellman, Bloom wrote Attending and Enjoying Concerts for Pearson/Prentice Hall.Show and Tell: The New Book of Broadway Anecdotes (Oxford University Press) was published ij 2016.
With co-author Richard Carlin, Bloom wrote "Eubie Blake: Rags, Rhythm, and Race" (Oxford University Press, 2020).
For such organizations as the Library of Congress and the Billy Rose Theatre Collection at Lincoln Center, Bloom cataloged the papers of such theatrical greats as Burton Lane, Florence Klotz, Peter Stone, and Jerry Herman.
Bloom and Kleinbort directed benefits for the Brooklyn Academy of Music, The New York City Opera, and Toys "R" Us featuring such stars as Patti LuPone, Carol Burnett, Marc Antony,[5] Paul Anka, Wynonna Judd, Donna Murphy, Jerry Orbach, and Duncan Sheik.
In 2009, Bloom co-wrote with Kleinbort and Christopher Mirambeau a bi-lingual musical revue, Metropolita(i)n. It was produced at the Opera Paniche in Paris, France with a cast of French and American performers.
Bloom assisted Christophe Mirambeau in presenting a concert version of the previously lost Cole Porter revue, La Revue des Ambassadeurs; Mirambeau discovered Porter's lost songs, and the show reopened the historic Maison de la Mutualite on May 3, 2012, 85 years after its Parisian premiere.
A forty-member chorus and a cast of Parisians and Americans, including Amy Burton, Lisa Vroman, Jérôme Pradon, and Vincent Heden, performed the material.
2019 saw the release of the documentary, "Merely Marvelous: The Dancing Genius of Gwen Verdon, which Bloom co-wrote, co-directed and co-produced with filmmaker Christopher Johnson.