I have been using Amazon Music in order to access many worthwhile albums of classical music. I have a few frustrations with them, in that they add duplicates of the same albums, that albums sometimes become unavailable, that there are a number of things they seem to stubbornly refuse to acquire, and especially that they don't seem to have any conception of the different criteria by which to catalog classical music. Composer, catalog number, director, orchestra/ensemble, and soloist(s) all need to be specified (as well as record label), but they are almost comically bad at that. Is there a different service with comparable quantities of Fabio Biondi, Diego Fasolis, Jordi Savall, and Ottavio Dantone, but without the same limitations?