Not sure if these have been mentioned, but the following important albums are now available in the UK (at least):

John Coltrane - A Love Supreme
Marvin Gaye - What's Going On
Getz/Gilberto
Sonny Rollins - Saxophone Colossus

Also, Gregory Porter - Take Me To The Alley (MQA. 96k) is, I feel, reference MQA material. (I'm sure that the non-MQA is also very good.)

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