The text of the Haggadah can be found and read at various places and in various ways online. There are websites with parts of Passover Haggadahs available for download, and the entire Haggadah can be found at Chabad Organization's website.
The relating of the events of the Exodus on the night of 15 Nissan is a Torah-command. But the precise wording of the Haggadah is not prescribed in the Torah. In very ancient times, each family could be relied upon… Full Answer
Each "a" sounds like the "a" in "father," but is not elongated. So, it is pronounced running the sounds all together, and placing primary emphasis on the third syllable and secondary emphasis in the first syllable.