The collection consists of 235 pieces of music ephemera assembled by an anonymous California musicologist over several decades. The contents include such things as concert ticket stubs; show programs; handbills; publicity stills; record store posters; nightclub souvenirs; autographs; contracts, lobby cards; movie stills; postcards; fan and record industry magazines; sheet music; an oversize RKO theatre owners' advertising book for the 1942 sensation "Syncopation," starring Charlie Barnet, Benny Goodman, Harry James, Gene Krupa, et al; and miscellany such as matchbook covers and novelty promotional pieces. There are just a few letters in the collection. The collection contains materials representing both bands and band members, and individual artists. In many cases, there are only one or a few relevant items. Persons and acts represented include: Ray Anthony, Louis Armstrong, Charlie Barnet, Tex Beneke, Les Brown, Dave Brubeck, Cab Calloway, June Christy, Nat King Cole, Tommy Dorsey, Duke Ellington, Ella Fitzgerald, Erroll Garner, Stan Getz, Dizzy Gillespie, Benny Goodman, Glen Gray, Fletcher Henderson, Woody Herman, Harry James, Louis Jordan, Sammy Kaye, Stan Kenton, Gene Krupa, Kay Kyser, Frankie Laine, Peggy Lee, Guy Lombardo, Vincent Lopez, Jimmy Lunceford, Gordon MacRae, Freddy Martin, Billy May, Johnny Mercer, Glenn Miller, Vaughn Monroe, Gerry Mulligan, Red Norvo, Patti Page, Buddy Rich, Artie Shaw, Dinah Shore, Frank Sinatra, Charlie Spivak, Rudy Vallee, Sarah Vaughan, Fred Waring, Chick Webb, Ted Weems, Lawrence Welk, Paul Whiteman, Margaret Whiting, and Benny Goodman. In other cases, the collection contains an item or items (such as menus) that have been autographed. The collection contains autographs or autographed items for the following: Gene Krupa, Jess Stacy, Teddy Wilson, Blue Barron, Eddie Duchin, Shep Fields, Ziggy Elman, Glen Gray Band, Milt Gabler, Horace Heidt, Dick Jurgens, Kay Kyser, Guy Lombardo, Xavier Cugat, Hal McIntyre, Art Mooney, Buddy Morrow, Harry James and "Tiny" Timbrell.