Aliases
An alias is an alternate name for an entity. They typically contain common misspellings or variations of the name and are also used to improve search results.
Klopstocks Morgengesang am Schöpfungsfeste, Wq. 239, H. 779: IVb. Chor "Herr! Gott! barmherzig und gnädig" (Chor) has no aliases.