Speaking of classical tones (and passsion), without a doubt, a favourite of mine is David Oistrakh's rendition of Tchaikovsky's Violin Concerto in D Major, Op. 35.
What an amazingly passionate piece! I have always wondered what it would be be like to experience it at full orchetral volume, with an equally passionate partner (who has an above average appreciation for violin concertos).
www.youtube.com/watch
Here's a top tip: don't look: just listen to the amazingness!