LessonsMadd Lengths and Permissible Combinations — Ṭūl, Tawassuṭ, Qaṣr and ConsistencyQuiz

The concluding discussion says a reciter need not perform every theoretically valid variant in one reading; adopting a sound transmitted option suffices. Breaking consistency, reversing the stronger/weaker hierarchy and switching unpredictably between options are defective in the skilled tradition.
The author also qualifies some labels 'not allowed' / 'incorrect' as meaning less preferable in this chapter. Practical method: classify each madd, select a recognized option, maintain it and learn subtle variants through oral instruction.

Opening interactive controls...

The author's final caution on variant options

Madd Lengths and Permissible Combinations — Ṭūl, Tawassuṭ, Qaṣr and Consistency

The concluding discussion says a reciter need not perform every theoretically valid variant in one reading; adopting a sound transmitted option suffices. Breaking consistency, reversing the stronger/weaker hierarchy and switching unpredictably between options are defective in the skilled tradition.
The author also qualifies some labels 'not allowed' / 'incorrect' as meaning less preferable in this chapter. Practical method: classify each madd, select a recognized option, maintain it and learn subtle variants through oral instruction.