Other outer planets like Uranus & Pluto plays a part too but I didn’t include them here because it’d be too much to put in so hence I’m just going to be talking about Neptune on this post. Neptune shows what the general public is obsessed with.
Neptune in Scorpio (1956-1971): Scorpio is all about transformation. This period of music and culture saw a big transformation/change starting with Elvis Presley breaking into music in 1956 with Rock N Roll and continued with The Beatles in the 1960s + the Counter-culture movement. Attitudes towards sex, fashion, drugs & music changed highly. This era was seen as controversial because so many things were changing and pop culture gave more importance to the youth. Era of Hippies, Psychedelics, & Civil Rights Movement. Could also explain the rise of cults in the 60s.
Neptune in Sagittarius (1971-1984): Cocaine, New Wave, Disco, Synth, Funk, MTV, Big Hair, Flared pants. The 70’s also had a lot of men openly expressing their chest hair, I think it’s a very Neptune in Sagittarius look + the staches.
Neptune in Capricorn (1984-1998): RnB, Hip-Hop, Grunge, Hair Metal, Adult Contemporary Ballads, Heroin Chic, Yuppies & Wall street boom, Alternative music
Neptune in Aquarius (1998-2012): Teen-pop, Spice Girls, Britney Spears, Boy bands: Backstreet Boys & NSYNC, Trance, Autotune, Y2K, Paris Hilton, Tacky eccentric 2000s fashion, Electronic music, Euro-pop, Early Internet Forums, Birth of Social Media, Flip phones, MySpace
Neptune in Pisces (2012-2025): Alternative-pop artists like Lorde & Lana Del Rey, Streaming services, Binge-watching, Nostalgia baits, Sad music, Social media addiction, Retro style becoming popular, Doomsday/Apocalyptic feel. You can blame Neptune in Pisces for the unnecessary reboots and throwbacks of past decades. Neptune rules Nostalgia and being domicile in Pisces doesn’t help and the obsession with nostalgia is out of control. Neptune in Pisces also popularized taking care of mental health, therapy & meditation.
Neptune in Aries (2025-2039) Pop culture and music is going to highly change next year. Expect more Aries themes to pop up in music and fashion. Bold, Energetic, Dance, Upbeat, Aggressive & Empowering music will be back. Fashion could be leaning towards flamboyance, colorful, daring & masculine.
I also lowkey think more people will start to use drugs for pleasure with Neptune in Aries because Neptune in Sagittarius in the 70s/80s saw the rise and excess use of Cocaine. Neptune being in a fire sign shows more energy.
Neptune in Leo in the 1920s also brought the rise of Jazz music and the ‘Roaring Twenties’ & Flappers
Saturn in Aries eras also show the time when pop culture and music starts to get flashier and sunnier.
Ex:
1967-1969: Summer of Love, Hippie, Psychedelics, Woodstock ‘69
1996-1999: Spice Girls, Boy Bands, Teen-pop, Bubblegum-pop, Britney, Euro-pop
The next one is on 2025-2028
Something I think about regarding Neptune and music...Paul McCartney, John Lennon (and Ringo Starr, Pete Best)..all Neptune in Virgo. With George Harrison, he had Neptune in Libra. If you consider the songs and melodies they created I think it can help us perceive Virgo and Libra energies better. Virgo is very misunderstood/hard to understand but through that energy they created words and music that channeled something that the entire world could tune into, some sort of universal essence, very catchy, in the body/ bodily catchy tunes, sounds, words. And George, well it was LOVE.
It opens another question for me - were the true hippies Neptune in Virgo or Neptune in Libra?
I have Uranus and Pluto in Libra and I definitely have a hippie soul 
/p>
@sophiab Based upon the hippie phrase “make love not war”, together with the peace, love and creativity associations; I’d have to say that Neptune in Libra represented the true hippies.
Like you, I feel hippie- like and share Uranus & Pluto in Libra. I also think our Neptune in philosophical Sagittarius has contributed towards us being soulful, spiritual seekers 😍 
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@hades-moon Neptune in Sag (with the Libra) is a really nice placement, I agree. We have been rather overshadowed by the Neptune in Cap generation with their more driven, manifest creativity, but I think we provide the Meaning and Magic (from connection to Nature/Source) where these have become increasingly lost, which leaves people feeling a bit empty and hopeless at times. Go talk to the storyteller and you will be revived
Ps. In Aus you have the dreamtime, right?
@sophiab Yes, the Dreamtime is beautiful. It would be so beneficial for the elder’s wisdom and stories to be shared at every school. Our country would be so much better for it.
I think religion has been dropped by many, with nothing to replace it. As you described, this leaves some people vulnerable to feeling a void/emptiness.
“Go talk to the storyteller and you will be revived” - Yes! 😊🌞