"Concerto" is a type of composition, so in the catalog, every instance of this piece will have that special library generic title added to help us find it: genre, medium, number, key -- concertos, piano, orchestra, K. 537, D major
A keyword search using the most important of those elements will find almost every instance of this concerto in the Library:
- composer - mozart
- title - concertos, piano, 537 [maybe even just 537]
- format - use drop downs or format words
Sound Recording
![Mozart Concert 537 recording search](//libapps.s3.amazonaws.com/accounts/40126/images/mozart537sr.jpg)
Score (Piano reduction)
![Mozart Concerto 537 piano score search](//libapps.s3.amazonaws.com/accounts/40126/images/mozart537sc.jpg)
![2-piano score](//libapps.s3.amazonaws.com/accounts/40126/images/2piano237.JPG)
Can't Remember Every Opus and Catalog Number?
Use what you know to search the catalog and look in the catalog record. In this case, "K. 537" is in the title.
![Coronation concerto search](//libapps.s3.amazonaws.com/accounts/40126/images/coronation537.jpg)
Or use the online music encyclopedia from Oxford Music Online.
![Mozart concerto 537 in Grove](//libapps.s3.amazonaws.com/accounts/40126/images/mozart537grove.jpg)