Hijaz refers to Saudi Arabia, which in Arabic is still known as the Hijaz. This maqam, which originated in Saudi Arabia, is linked with death, and is used to mark sad occasions that occur on the calendar, as well as sad occasions that occur in a given parasha. We use this maqam on the following Shabbats: Haye Sarah mentions the death of Sarah and the death of Abraham later in the parasha. Vayhi mentions the death of Jacob and the death of Joseph later on. Ki Tisah discusses the tragedy of the Golden Calf. Aharei Mot mentions the deaths of Aaron's children, Nadab and Abihu. Shelah Lecha mentions the spies, and the punishments that followed. Debarim has no sad event within the perasha, however, Hijaz is used because it falls out on the Shabbat before Tisha B'Av, the saddest day on the Jewish calendar.