You may notice that for some of the numbers, Semyon lists all of the units in the set the first time they are mentioned: for example, he names the patriarchs, the matriarchs, the books of the Torah, and the twelve tribes. In addition to his impressive memory, Semyon is a marvelous and charming performer -- watch his warm and dynamic facial expressions as he sings.
Krotsh was educated in a kheyder (traditional religious boys’ school), a Romanian Modern Hebrew Jewish school, and a yeshiva, where he studied Talmud and other traditional texts. Although Krotsh was an excellent student and remembers everything he once learned in yeshiva, he also studied to be a tailor in order to make a living.
You may remember Semyon from this post, in which he sings a drinking song. You may also recognize this tune of Ekhod Mi Yoydeyo from Naftule Shor's performance of it, posted last Peysekh with this analysis by Michael Alpert.
--Asya Vaisman & Sebastian Schulman