Easy one...Clark Terry "Portraits". For those of you aware of it, you already know, but if you haven't had the pleasure, it is a musical and sonic treasure. This combo jazz release is the most open recording I own in any musical genre on any media. I know that is quite a statement. The Chesky SACD is a must have. With no engineering trickery the music genuinely images beyond the width of the speakers. 🎼
