Which master version are you really listening to while streaming the Steely Dan "Aja" track? Audiophilestyle wrote an article about this, and "seven" different digital masterings. Try the CD remaster and compare to your streamed version, you might hear a difference. This might explain part of it.
Quote: @Audiophilesyle:
"The digital mastering history of Aja is complex, the differences between the masterings are notable, and debate on the interwebs about which is the best has been particularly heated.
But the basic story is that there have been (at least) seven digital masterings of Aja: 1) a 1984 CD mastered by Steve Hoffman, 2) a 1984 CD mastered by Nichols, 3) a 1984 Japanese CD with uncertain mastering credits, 4) a 1988 Mobile Fidelity Sound Lab CD remaster, 5) a 1993 remaster by Glenn Meadows found on the Citizen Steely Dan CD box set, 6) a 1999 CD remaster by Nichols, and 7) a 2010 “flat transfe[r] from Japan[ese] original analogue master tapes” by Hitoshi Takiguchi at Tokyo’s Universal Music Studios, used for both a 2010 SACD and severalsubsequent CDs."