the prelude:

the room was set in full darkness with only 1 very faint spotlight shone right above the “latch” stool. I used a flashlight to guide each guest from the doorstep to the event venue.

movement: "the monologue"

first half:
I welcomed all the participants reciting the statement of the event, sitting on the "latch" stool, reading from one of the playbills, full darkness except one very dim spotlight from above.
video 00 : 00 - 06 : 15

second half: 
I unlocked the room with pliers cutting off the wires that connected the latch poster, stool and the walls.
I returned the playbill to the rest of the 10 on the shelf.
I tried to nail the latch, which was also the event poster, to one side of the wall but failed.
I removed the covers on the two instruments when the only light was also shut and followed the complete darkness.
video 06 : 15 - 08 : 25

movement: "the live show"

*please watch the live show (with sounds) before continuing*

movement: "the release"

at the end of the live show, all three modeling lights were turned on: two from the stage, one at the back of the audience seats. Now the audience of a moment before officially joined as the players on the set.
I released the score of the live show so it rolled down from the ceiling.
video 10 : 47 - 11 : 44

the epilogue:

people each received a playbill and joined me on the stage. Entirely we coursed into random actions...
The happening ended when I stamped the date May 26th on the same position on the machine as shown in the end scene of the live show.
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The stamping finale: 
before each participant exited, I stamped on each one of their playbills: transient details RELEASED at ___ (the time that should be filled by themselves) with May 26th that I pre-stamped, practicing the responsibility of this happening's leading role. See "the playbill"

the playbill is the core medium that introduces and concludes the event.
It is in the form of a two-sided accordion book, containing my writings and stamps.

front side features:
p2-4 "Why Do I Relinquish the Piano?*" click to read
p5-7 "Statement*"
p9 "The Credits"

back side is dedicated entirely to "Reside in Nothingness*," an essay on entropy and wabi-sabi

p1, 8, 9, and 10 were pages for "chance." The production did not depend on printing machines in order to maximize the presence of chance. I stamped, smudged, wrote, and mistook. All ten playbills were thus different and unique.

important dates were stamped onto each label:
"...On April 14th, I connected ten push-pull solenoid electromagnets to four power supplies.
On April 28th, I built two models.
On May 8th, I designed one of the models..."
(from the STATEMENT as of May 26th, 2023 by Yisheng Yuan)