It's just a creepypasta, it never actually happened.
There's tons of different versions of the story, but I think all of them have one thing in common: Only the -original- releases in Japan had the binaural beats that affected kids in such a way to cause them to commit suicide.
The stories say that the games were recalled, the music changed, and were re-released, thus the binaural beats responsible for the suicides in the old Pokemon games ceased to exist, and all was well again.
So even -if- the stories were true, the ''original'' music no longer exists, and only the ''fixed'' versions can be found. The ''suicidal beats'' cannot be found in the Japanese versions, nor the US versions, etc.