Tajweed is accurate Qur'anic recitation through proper articulation points and letter qualities. Lahn jali disturbs the basic form of a letter or word, whereas lahn khafi concerns a finer Tajweed quality.
Istiʿadhah: seeking Allah's protection at the beginning of recitation.
Basmalah: beginning an ordinary surah in Allah's name, with distinct guidance for starting within a surah and for the opening of al-Tawbah.
Practical mastery means being able to identify the category of an error, repeat a correctly modelled sound, and choose the appropriate opening sequence. The next lesson examines the articulation points in detail.