Listening to famous, and sometimes not-so-famous but nonetheless very good, artists play the repertoire you're working on is an invaluable learning tool. There are many ways you can do that. The UWM Libraries owns 60,000+ LPs, 16,000+ CDs, and subscribes to 3 streaming audio databases that altogether have nearly 3,280,000 tracks.
There should be no reason to use youtube to listen, with the possible exception of a very newly composed work that has not yet been commercially recorded.
As a musician, you should be listening to high quality - i.e. high resolution - recordings. You should be concerned about how the music SOUNDS and how good the performer you're listening to is.
Music on youtube sounds TERRIBLE most of the time.
So why not listen to the 'real' thing?
For example, here is a low estimate of the number of recordings of Mozart's Violin Concerton no. 3, K. 216, you can listen to just with library resources. CD: 14, LP: 12, NAXOS: 50+, Classical Music Library: 29, TOTAL: a minimum of 105 different recordings of this work... there is likely some overlap, because many of the very well-known recordings have been digitized and are in one of the online databases, but think about that for a minute. Even if 25% of them are duplicates, that's still nearly 80 different performances of the same piece you could listen to!
And if we don't have it, UW System Loan and/or InterLibrary Loan can certainly get you access to better recordings than you'll find on youtube. Yes, you may have to wait a couple of days... but isn't listening to a good recording worth the wait?
We subscribe to 3 streaming audio databases. These three require that you be a current UWM student/faculty/staff person to access
But there are quite a few others that are free, but way better than youtube. Here are a couple of examples.