Many of the songs can't even be ID'd by Shazam and are not on Apple Music.
I have this same experience almost every time my wife comes back from a record store, the library gift shop, or a thrift store.
Digital services like to talk about the tens of millions of songs and videos they have. They don't like to talk about the hundreds of millions of songs and videos they don't have. And probably never will.
I wish the initial modal dialog was easier to close and that the current track ID was reflected in the URL bar, e.g. http://radiooooo.com/?track/df3115c7-4eea-4d26-aba9-3c190542...