yom tob การใช้

In the more traditional congregations, such as London and New York, a free-standing organ or electric piano is used at weddings or benot mitzvah ( although never on Shabbat or Yom Tob ), in the same way as in some English Ashkenazi synagogues.
According to the editors, astrology at most only ever had a marginal role in Jewish medical practice at the time; but they see David ben Yom Tob's " Kelal Qatan " as part of an uptick of interest in the subject in Catalonia and Southern France in the 14th century, which can be detected also in Hebrew works by Shem Tov ben Isaac of Tartosa and Pinchas of Narbonne, and Latin works by Bartholomew of Bruges, Bernard de Gordon and Arnau of Villanova.