it's the pulsing that induces the altered states, you can use a metronome-like sound for similar results, this ones at 9hz which is mid alpha - absorbed in a go

it's the pulsing that induces the altered states, you can use a metronome-like sound for similar results, this ones at 9hz which is mid alpha - absorbed in a good book frequency a quick bit of supercollider code: play{SinOsc.ar(369.99,0,LFPar.kr(9))}