For me it is almost the same, but I want to know what do you guys think.
I don't know much about music theory, maybe you can help me here!
Its not really a theory difference. It's more like a difference in the style of play. Both styles probably stick fairly heavily to the minor pentatonic or blues scales. The difference is probably more evident in tone and phrasing.
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absolutely what will said

Yay, my first compliment!
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One you play on drugs, other on alcohol =P.

Ahaha so true.

Although, Percocet Pete can play and sing some madddd blues.
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Psychedelic Rock is more experimental. But many times they go hand in hand. The music in 60s was pretty bluesy but also psychedelic (Jimi Hendrix for example). Jimi Hendrix's first album was pretty psychedelic but his next albums were more bluesy. They had less random experimental stuff.

Led Zeppelin has some blues rock songs like "I Can't Quit You Baby" and "Since I've Been Loving You". And they have some more psychedelic stuff like "How Many More Times" and "Dazed and Confused" (though both of them are really bluesy too). But yeah, you really can't draw the line between blues rock and psychedelic rock (same with any other genre: hard rock vs classic metal - heavy metal vs thrash metal - thrash vs death metal etc). Psychedelic rock has more strange effects and experimental stuff.
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Just remember that there are no boring scales, just boring players.


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Last edited by MaggaraMarine at Apr 29, 2013,
i think Psychedelia is more like a mood, or a twist, of how you approach making the music of your choice..its not a set form..you get your Grateful Dead, Zep, Jefferson Airplane trippy stuff..you got the Garage(Nuggets, early to late sixties stuff)..Pink Floyd..Hawkwind(Spacerock)..then later on, Butthole Surfers, even Sonic Youth, Flaming Lips....my point is, you can add the trippy sounds, approach in style, to Blues ,metal, alternative, anything...
Psychedelic is more to do with the musical themes of the song/ the lyrics.
For example, Hendrix's 'Purple Haze' is considered psychedelic due to the themes of the lyrics and the otherworldliness of the effects and the sound they create. However, his version of 'Killing Floor' is straight up blues rock, as it is simply a blues song 'rocked up', so to speak.