Experts in music pursue a lot of study about the svaras and the ragas, their elaborations and nuances and the nyasas and the vinyasas associated with them before they decide on a particular mode of delivery.
The child beginning to have music lessons also has the same sa-ri-ga-ma-pa-da-ni for his practice. He may not be taught all the elaborations and the nuances of the svaras, but the sharp and abrupt voicings of the svaras are supposed to be enough at that stage.
In the early stages it is the coordination of the shruti and the rough fixation of the svara-sthanas that are considered to be enough.
Starting from these elementary and rough beginnings, one is taken up to all the different nuances and gymnastics about the nyasas and vinyasas in the higher stages of practice. So also sannyAsa comes at the end of life.
What subtle realities and techniques of practice one gets to know at that end stage, the same realities and techniques have to be learnt by all in an elementary way like a child learns sa-ri-ga-ma-pa-da-ni.
Which is why the basic knowledge of Advaita is always necessary to be learnt by one and all, of all ages.