To expand on what @James_I and @Shawn_Costello wrote, I’ll quote what I have written on these questions before.
In 2011, I read that Paul Motian had died. Motian was a bad-ass, he broke new ground. I looked at my albums with him. But of course, being a drummer, most of Motian’s albums are not published under his name, even though being a celebrated drummer and bandleader and composer, some where. But in Roon (yes, in 2011 I had Sooloos, Roon’s precursor), when I looked at Motian, I could see all the seminal albums that he played on in the 50s and 60s, like Bill Evans’s Waltz for Debby . But I also had Live at Birdland with Lee Konitz, an album that was released a few months before Motian’s death – ooh, this one also has Brad Mehldau, didn’t use to be fond of him but this is great stuff, let’s see what else Mehldau has done. And Motian had played with the Italians like Enrico Pieranunzi, and with Scandinavians like Bobo Stenson, and on and on. Most interestingly, he had very recently played with young musicians I love, like Anat Fort and Samuel Blaser. But looking at the library, I noticed very few recordings with Keith Jarrett, which is odd because I have lots of Jarrett. Click, looking at Keith Jarrett – of course, now I remember that they played a bit together in the early days but didn’t get along, and Jarrett mostly played with Jack DeJohnette, in fact I recently heard them play in Seattle. Click on DeJohnette – the same profile, he played on seminal albums in the old days but also recently with Esperanza Spalding and Rudresh Mahantappa (and Sting). And look what Mahantappa did…
Of course, this exploration took the entire weekend, listening to all kinds of great music. And with Roon today, it would involve discovering and playing stuff I didn’t have on Tidal.
The point is, very few of these albums would be discoverable on a conventional system because they would be listed under Bill Evans or Keith Jarrett or Enrico Rava or…
And this is active discovery based on what I have and what I know and am interested in. It isn’t some service suggesting things that are “trending”.
The Motian story was about a jazz classic, but I did a similar exploration of Hélène Grimaud after reading in the New Yorker about the cadenza kerfuffle that lead to the break with longstanding collaborator Claudio Abbado. And the April, 2017 album of Bach Trios with Yo-yo Ma and Chris Thile and Edgar Meyer – Thile is a MacArthur award recipient who has played folk and bluegrass music, also did an album with Brad Mehldau and took over NPR’s Prairie Home Companion after Garrison Keillor (yes, even this info is in Roon!).