However, the Sh"t Igrot Moshe concludes that during the three weeks we are more strict regarding music and therefore there is almost nothing to rely on to play music at a tzedaka banquet. The true reason behind its greatness: In the writings of the Arizal it is explained that the greatness of the 15th of Av is that on this day we experience a full moon. Learning the laws of Beis Habechira/The Temple: - The Midrash states that studying the laws of the Beis Hamikdash, its structure and vessels, is viewed by Hashem as if one is building the Temple. Regarding eating with friends [as is common to do in Shuls which serve the third meal], some Poskim rule it is not to be done. One who is dirty or sweaty is permitted to bathe in lukewarm water. If one omits this additions Shemoneh Esrei does not have to be repeated. The purpose of this vision is to help increase a Jew's anticipation for the redemption. May an Avel go to Shul?
Some give the wine to a small child, while others use beer. The cup is customarily broken after the Sheva Brachos. Even then it is permitted for a woman before immersion, or for a man as well, in honor of the Shabbat (for example if Tisha B'Av is on Shabbat and postponed to Sunday, or if it is on Sunday itself). The rabbis mention other calamities believed to have occurred on that date, including the breaking of the Tablets by Moses. However, Orchos Rabbeinu 2: page 95 is stringent except for on Shabbat. Some say that the prohibition against changing clothes only applies to a person who is changing for pleasure, but one is permitted to change when his clothes get dirty. Rav Yitzchak Yosef (Motzei Shabbat Matot 5782 min 21) explained that it is forbidden as the kedusha of Shabbat does not begin at midday of Friday as we view in hilchot avelut. If he only remembered after finishing Davening then it is proper to concentrate on each word of the Chazan's repetition and thus fulfill his obligation. You may not wear any new garments even on Shabbat. The Magen Avraham 551:42 explains that the reason not to make Shehecheyanu is because the three weeks is a time of tragedy for Klal Yisrael and it's improper to have extra joy. At Shacharit we read Devarim 4:25-40. Some Sepharadim do wear a tallit and tefillin in the morning.
Erev Tisha B'av: The above allowance to eat meat and drink wine during a Seudas Mitzvah applies even on Erev Tisha B'av, with exception to the Seudas Hamafsekes. However, some Poskim rule that based on Admur in the Siddur one is not to recite Nacheim in Birchas Hamazon. However, any other alcoholic beverage is permitted.
Buying New Clothing. If not for pleasure. If one forgets to say Aneinu at the proper place he can say it in Elokai Nitzor, and if he forgets then he should not repeat the Amidah. May one use mouthwash if not doing so will cause pain and discomfort?
We may not greet one another or send gifts on Tisha B'Av. Fasting on the 17th of Tammuz stems from the voluntary consent of the people. If Tisha B'av falls on Shabbos and is pushed to Sunday, then one is to refrain from walks throughout the entire day, starting from Friday night. If, however, a pregnant or nursing woman feels weak and will become sick due to the fast, she is not to fast.
Nevertheless, one may only wash the dirty areas and not the entire hand. Cohabitation and anointing are forbidden. However, one may not change his pants or jacket to a fresh pair, unless the pair is unwearable. This applies whether he is doing so in exchange for payment, of for free. Nevertheless, the custom is to be stringent beginning from the 7th of Av, unless she feels a strong need for it. In order to instill within ourselves a sense of loss, our Sages instituted numerous restrictions to create a feeling of sadness. May one sit on a cushion? One is to recite the blessing prior to Eicha. It is forbidden for a child to learn even on his own if he is of age to receive joy from his learning. 4 Meals with Friends. Interesting answers.