This piece is part of a series of 12 preludes that correspond to the months of the Jewish year 5775. This one is my "two zuzims" on Passover, which falls during the month of Nisan.
You can listen to it here, and you can get the music here. I plan to put the whole set of preludes in the IMSLP when it is finished in August. I have limited myself to writing one per month.