Item #: SCP-XXXX
Object Class: Euclid
Special Containment Procedures: SCP-XXXX is to be contained in a standard 10mx10m cell. This cell should at all times contain at least two CD players and 100 CDs containing unique SCP-XXXX-2 sounds (refer to Research Result Log XXXX-19 for an exhaustive list of the sounds that are currently known to be part of SCP-XXXX-2). It is required that two or more site personnel members (of Class C or lower) stationed within a 100m radius of SCP-XXXX can each reproduce at least 40 hours worth of SCP-XXXX-2 without the use of any electronic apparatus.
Requests for instruments or food items smaller than 50cmx100cm that are considered safe for general use may be granted to SCP-XXXX without special authorization. Requests for items of any other type, considered unsafe or larger than the previously specified measure require direct, written approval of a Level 4 security clearance staff member or three non-combatant Level 3 security clearance staff.
Due to the fact that SCP-XXXX's ability to hear is vital for its containment, it is strictly prohibited to expose it to any sounds with a volume higher than 80 dB, or that would otherwise cause temporary or permanent damage to a normal human being's auditory system. Failure to comply will result in immediate termination of all involved staff.
Description: SCP-XXXX appears to be a Caucasian male between 20 and 25 years of age and approximately 1.95m tall. It has no remarkable external physical features, other than since its capture in ██/██/88 it has shown no signs of aging.
When SCP-XXXX is denied exposure to SCP-XXXX-2 (refer to Research Result Log XXXX-19b for a reduced, non-specific list) for a period of five minutes or more, the nearest living human to SCP-XXXX will immediately become SCP-XXXX-3. SCP-XXXX-3 run towards SCP-XXXX in a straight line until it is within 8 meters of distance to and in direct line of sight of SCP-XXXX, and then produce SCP-XXXX-2 until SCP-XXXX is subjected to a second source of SCP-XXXX-2.
After the second source of SCP-XXXX-2 is recognized by SCP-XXXX, SCP-XXXX-3 will return to normality. Humans that regain their senses will have no memory of anything they did as SCP-XXXX-3. Any SCP-XXXX-3 that are unable to reach SCP-XXXX, or become unable to continue producing SCP-XXXX-2 instantly die of a heart attack and are replaced by the next closest human to SCP-XXXX. If SCP-XXXX-3 is forcibly separated from SCP-XXXX, it will attempt to avoid separation by any means necessary, including violence;1 failure to return to SCP-XXXX within a short timeframe will result in death.
The simultaneous existance of two SCP-XXXX-3 is yet to have been observed. A single human being may become SCP-XXXX-3 multiple times.2
Addendum a: Limited research has lead us to believe that SCP-XXXX does not require to perform any of the basic functions of a living organism to sustain itself. However, SCP-XXXX breathes and will periodically request food and water, showing signs of severe stress when its attempts to perform a basic organic function are directly denied or otherwise fail.
Addendum a2: Further experimentation involving restricting SCP-XXXX access to food, water, oxygen or other basic needs has been indefinetely prohibited by the O5 Council.
Addendum b: The following is an incomplete and imprecise list of sounds currently known to be part of SCP-XXXX-2, consult with Senior Researcher Q███ for access to Research Result Log XXXX-19.
Addendum c: The following is an incomplete and imprecise list of sounds currently known to NOT be part of SCP-XXXX-2, consult with Senior Researcher Q███ for access to Research Result Log XXXX-20.
Addendum d: I will not outright ban further testing of traditional containment methods of SCP-XXXX. However, seeing it has yielded no results so far and SCP-XXXX-2 is a cheap and effective containment method, any traditional method testing from now on will require direct Level 4 security clearance approval.
~Site Director F█████████
Addendum e: Although there is some consistency to what music and sounds belong in SCP-XXXX-2, automated testing is a needless risk. Considering we've already accumulated ███ GB of SCP-XXXX-2, any added audio testing should only be done as a means to train newly-hired Research Assistants.
~Senior Researcher R██████
Addendum f: SCP-XXXX is a sapient and dangerous being, not a toy. Following Research Assistant G███'s involvement in Incident XXXX-04, any further attempts to use SCP-XXXX to determine if a song can be truly considered music or not will result in immediate termination of all staff members involved.
~Senior Researcher H██
Addendum g: This is a formal request for all staff to think carefully before soliciting a re-classification of SCP-XXXX to a Keter Class. Based on its docile attitude and the great broadness of sounds that compose SCP-XXXX-2, all further requests will be immediately rejected until SCP-XXXX stops being compliant with Research and Security personnel or there is a major development in its nature.
~Site Director F█████████






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