So as related in Viykira Rabah 20:1, Yitchak came home and his mother Sarah ask how was your day? He said first Dad took me up a mountain, then up and down some hills, and then up a really big mountain, and then he built a altar, put me on it and would have slit my throat if an angel didn't stop him. When Sarah heard this she screamed and died. For this scream we blow six tikoat and three teruot on Rosh Hashana.
I suggest the six tikoat and three teruot are related to the story.
Each time Yitchak related the first three parts of the story, she screamed oy veh. When she heard the last three, she screamed or vey gevalt.