Bach - Aria from the Goldberg Variations
There are so many reasons why I love this piece. I love that Bach in general is so transparent and he doesn't hide behind tricks or common phrases to provide "meat" to his work. This piece is so well balanced and from the performance end of it, if you're not careful and paying attention to the phrasing, the whole foundation can crumble.
I recorded this as a quick study and something that I could possibly play at church. Thanks for listening!