Earworms (annoying songs in your head)

[Дядя Сережа]

Does anyone else have earworms from n-back? When I earned 7 lvl i got some. You know, these songs in your head that stay there all day.

I don't use n-back whole week and have 2 days off. These 2 days - days of silence in my head. So this is definitely the n-back are reason of these earworms.

Also, I changed the mode from double to quad one week ago. While i was on Quad 2-Back - there was silence. Earworms started from Quad 3-Back.