Hellou! There are not only soundtrack-like electronica music in SoundCloud – also high quality performances and recordings of ”western art-music” can be heard. Here is some findings…
Boston-based New England Conservatory (NEC) provides regulary high quality recordings from solo performances to orchestral performances to avantgardean improvisations. Here New England Conservatory piano faculty Randall Hodgkinson performs Fauré’s Preludes.
Jouni Stenroos – guitarist from Espoo, Finland – has transcribed and arranged J.S. Bach’s music for 10-string guitar.
Herman Vandecauter from Brussels, Belgium is specialised in different kinds of plucked instruments: romantic guitar, mandolin, theorb-lute… Here is Händel arranged for ukulele!
Antti Sunell Music Blog 
Thanks for this, I was looking for good classical music on Soundloud. Let us know if you find more!
Thnaks, yes there will be more…