It demands undivided attention

I listened to a lot of jazz this weekend during a visit to central Iowa -- celebrating my sister-in-law's birthday and the baptism of my newest nephew.
I only listened to one album twice -- "BAGS MEETS WES," by two men who were arguably the best musicians of their era for their respective instruments, vibraphonist MILT JACKSON and guitarist WES MONTGOMERY.
It's one of those albums that demands your undivided attention while listening -- I have heard several new aspects with each playing. Otherwise, the vibes and guitar can float past your ear, which would be tragic.
Are there any other albums that demand intense listening?