zecher zeicher

There is a Machlokes between the Minchas Shai,who

says you are supposed to pronounce "Zeicher" with a

Tzeirei and the Heichel Habracha who holds to pronounce

it with a Segol, ," Zecher".

The Minhag is to read it twice, Zecher and  Zeicher.

The Ma'aseh Rav (134) writes The Gra originally

read "Zeicher". Later in life he changed

his mind and read Zecher..

It seems, that the Gra never read it twice Zecher and Zeicher