Let us consider the 2/4 time. Now, let's say I split up all the beats by 2 in one bar. This gives me a total of four 1/8th notes. Now, in some cases, I've seen that, they are grouped as 2 pairs or grouped together as 1 huge beat. I understand that both are exactly the same theory wise. But, what is the difference?
Does it mean that in the first case, the third beat should have a down beat, accented, etc? Or are both the ways of writing it exactly same?
I apologize I'm unable to draw this out. I hope my question is clear. Any help is appreciated.