What are the best ways to memorize the Holy Qur’an and solidify its memorization so that it is not forgotten, and is seeking to improve one’s voice for reciting the Qur’an a blameworthy or permissible supplication?

Memorizing the Quran is a great endeavor that elevates its memorizer to be with the noble, righteous scribes. To memorize it, one should allocate times of high activity, especially the last third of the night and after Fajr prayer, as these are times when prayers are answered. One must also keep company with the people of the Quran and frequently review what has been memorized so that it does not slip away. Asking Allah Almighty to grant you a beautiful, humble voice is not an transgression in supplication, as the voice can change, and beautifying the Quran with it is legally encouraged. Transgression in supplication, however, occurs when asking for impossibilities or for sinful things.