Here's why classical music needs its own app or categorization system:
You want to listen to Dvorak's cello concerto? How many different orchestras have played it? How many of those orchestras have played it multiple times, each with a different conductor that will drastically change the style of the performance? Now each of those will have a different soloist. Sometimes you can have the same orchestra, conductor, and soloist but in a different venue on a different occasion, and that recording will have desirable traits over the others.
There are exponentially more variables in tracking down a classical recording than pretty much anything else. And every single one of those variables is critical in the presentation of the performance. It's orders of magnitude more subdivided than all other genres. There needs to be a better way to search through all of those variables to narrow down a recording, instead of just the typical "artist-album" format.
It gets even worse when you want one specific piece that's buried in an album that has a different title.
I want "Photograph" by Def Leppard? Easy to find, even with live versions and covers.
So if you don't understand it, just ignore it. A well-constructed classical-specific app could be a godsend for those of us that enjoy the art.