First of all, to get the BBC requires a VPN link and an HTPC. For streaming in AV I find an HTPC to be a huge asset.
The best sites you have to subscribe to.
The
BPO Digital Concert Hall is an outstanding value. You have access to an enormous library of music going back to the Karajan years. For Atmos they don't support Windows. There are apps for multiple devices, and I use the LG app, and eARC. Quality is excellent.
Medici TV gives you access to a large number of concerts, operas and ballets around the world. It is a subscription service and has apps for various devices.
The Metropolitan Opera Player by subscription gives you access to a large number of archived operas. They have apps for multiple devices. Vision and SQ is superb.
There is DSO Live. Access to these Saturday night concerts requires a donation to the DSO. Picture and sound are absolutely superb. The DSO are absolutely on fire lately, and acoustic of their hall is just the icing on the cake. Some concerts are archived but the quality is not so good, as I think they come via YouTube, where as the live stream comes directly from the Clancy control room.
Then our own Minnesota Orchestra streams some concerts, audio of all is available on the NET. There is a great concert that will be streamed in AV tomorrow and free.
Mozart's Requiem is on the program starting at 8:00 PM CST.
Our SPCO live streams its concerts and has a
concert library.
The
Bach Society of Minnesota streams its concerts and keeps them available for two weeks.
The Festival of the Lakes in Brainerd Minnesota has quite a lot of concerts archived on YouTube. These performance are of a very high standard indeed. The Beethoven 9 from this last summer is one of the best on the NET. The students from the local high school chorus excelled themselves singing in German.
There are a vast number of good concerts to be streamed from YouTube. The Truro, Leeds and Norwich Cathedral recitals in particular. There are organ recitals from around the world aplenty. The there is the BIS organ channel, the Scott Brother Duo and Jeremy Martin's channel. Jeremy is a cardiothoracic surgeon from Portsmouth Ohio, and a superb organist and very entertaining.
There is just a vast amount of material available if you look for it. There is just an abundance of riches. A I said there has never been a better time to enjoy classical music.