I have to agree with others who have said that all music will date
loads of good stuff mentioned above – but it all sounds absolutely “of its time”. I can think of music which was “ahead of it’s time” (Sister Lovers by Big Star springs to mind). Or music which is relatively “timeless” (folk/ country/ old style blues type stuff which could have been made in 1990 or 1940) – but I honestly can’t think of anything that hasn’t – or will never date.
Stuff like Massive Attack might be holding on for a bit longer than most – but it will sound dated in 10/ 15 years (if not sooner)
Doesn’t mean you shouldn’t enjoy old stuff – I know I do