If you need scores frequently, e.g. for practicing, you don't have to search for them again and again. You can mark them as a favorite or as belonging to your repertoire and find them again quickly.

To do this, go to the score in question. Click on “Bookmark and share” on the right-hand side. Mark the score with stars as a favorite and/or tick the “In my repertoire” box.
From now on, these scores will be listed in the “Download sheet music” tab under “My favorites” or “My repertoire”.
