This document discusses a content-based search application for digitized sheet music developed by Jürgen Diet of the Bavarian State Library. The application called musiconn.scoresearch was created as part of the musiconn project funded by the German Research Foundation. It allows users to search a database of over 70,000 pages of sheet music from complete editions that have been processed with optical music recognition software without manual correction. A prototype of the application can be accessed on the web at https://scoresearch.musiconn.de and a live demonstration of it is provided.