In fact, there is a recording technology to get to the hidden messages when you play the music backwards by as backward masking,
It is the SNSD gee this technology went into.
To YouTube 'not backward masking(Gee Backward Masking)’ Video uploaded by the name is kept up compared to SNSD gee gee upside down and play normally is slow to play video..
I also saw I still heard claiming that video emerges explicit lyrics when I heard the gee upside down as it fits. However, making the song will not be reversed unless it is made to be heard would create a psycho like that lyrics…
The examples have made a song with backward masking in the country if the SNSD gee, if I made such intention will be a huge impact..