Contains approximately 500,000 pieces of sheet music, largely American, including about 35,000 pieces representing songs from the musical theatre, films, radio and television shows. Many of the pieces, primarily 1930s and 1940s, include photographs of the individuals or groups (bands, orchestras etc.) who are identified as radio performers. Also includes a large collection of band and orchestra arrangements that were used by WEEI's orchestra until it was disbanded. Note: Because the sheet music, only some of which is listed in the online catalog, is filed by title, a researcher would have to see the actual cover to determine if it included a photograph of a radio personality.