“60s lounge” and Laufey

I was really taken by the sound of Laufey’s Madwoman and am looking for the older music which inspired her.

The internet, however, has not been helpful. Between citing “The Great American Soundbook”¹ as her inspiration, or declaring its “clearly” bossa nova², i’m really lost. One person said “60s lounge,” which seemed promising³ but searching that brings a ton of AI-generated slop-and-slop-byproducts.

Is there a better term for what she’s referencing? Specific artists? Specific regions even?

1. which doesn’t sound the same to me at all
2. which no the fuck it is not, i, a brazilian, say
3. another person said “70s lounge”