Shiur based on the Siddur im Dach and the Maamar "Gal Einai V’Abitah 5737" by the Lubavitcher Rebbe on Lag BaOmer 5737 (1977)
Based in part on:
*https://www.lahak.org/templates/lahak/article_cdo/aid/4742640/jewish/-.htm
Two kinds of Simcha inside the city and out, Dovid Hamelech's joy and what kind of display joy Michal would have approved of. (based on likutei sichos vol. 1, p. 228)