Beethoven GatewayThe Beethoven Gateway is a system of online databases developed by the Ira F. Brilliant Center for Beethoven Studies to assist with discovery of resources on the composer Ludwig van Beethoven. Designed for any level of scholarly research, the Gateway is available online at no charge. The Beethoven Gateway originated in 1990 as the Beethoven Bibliography Database (BBD), an annotated index of literature on Beethoven, and its accompanying Beethoven Thesaurus. It later expanded to include the Beethoven Center’s online catalog and Digital Collection.