How to do Accord tremolo in a solo?

Hi,
I often see people do a tremolo on a chord in their solo.
What kind of chords can use for such things? For example in the minor swing?
I have no idea what kind of chords to use in solo and everytime I try it sounds bad.
GreetZ Rookie
I often see people do a tremolo on a chord in their solo.
What kind of chords can use for such things? For example in the minor swing?
I have no idea what kind of chords to use in solo and everytime I try it sounds bad.

GreetZ Rookie