Odd-looking coordinate system

I have created different themes using this odd-looking coordinate system.

The theme of these points is names of people.

The theme of these points is lovers.

The theme of these points is cities.

The theme of this point is sport.

Question 1: What is the theme of these points?

Question 2: What is the theme of this point?

The answer is

DANCE STYLES

And

MONTHS OF THE YEAR

Reason

The coordinate chart represents the three rows of letters on a QWERTY keyboard and at the same time the NATO alphabet…

For the example grids

We get therefore left to right up, down: Names: ROMEO,OSCAR,JULIETTE,CHARLIE,VICTOR,MIKE. Lovers: ROMEO and JULIETTE. Cities: QUEBEC and LIMA. Sport: GOLF.

For the two grids in question

we get T and F getting us TANGO and FOXTROT and N getting us NOVEMBER…