“I’m made of bells, brass and strings
Though it could be Quanta, or any other things
When everything comes together
as one and sings
You’ll call it a ________, be it chords,
games or dreams”

That answer to that riddle is word 3 in the Passphrase, but if you want you can take this challenge instead:

Strike any Yoga Pose near the Quin booth and hold it for 2 full minutes, without telling anyone why! Then we’ll give you the answer.

To get QR Clue 4, visit the booth and discreetly use the password, “Your stairway lies on the whispering wind.”