Wow! That sounds like an excellent experience!
I think music (vibration) makes all the difference in the world when opening up for exploration. And, I personally, think it brings up an excellent point. I think a lot of people underestimate the importance of music when exploring our inner/outer worlds. Hell, even on a bad day just listening to some gentle music can be as effective as popping some sort of anti-depressent happy pill.
Being a shaman myself, I really like the tone of this TR. Indigenous American music has particular beats and tones in it that really help us expand our awareness if listened to for that purpose.
I can hear the chanting in your experience (weird I know). I think that must have triggered an entry point for you that led you into a world of One-ness. Yes, I think you did experience 'the way things have always been'. A testament to the fact that this world is an illusory thing.
Anyhow, I'm happy that you had such a useful and enjoyable trip! Good on you!!!
Peace!