A kind of empirical Avagraha (sensation); to have the cognizance of the object (i.e., sound) even prior to its pronunciation; e.g. - by merely perceiving the movement of the fingers of a person playing a lute, to tell which musical mode or note he is going to sing.
svarasaṃcaraṇāt prāk tantrīdravyātodyāmarśanenaiva avāditam anuktameva śabdamabhipmyeṇāvagṛhya ācaṣṭe - 'bhavānimaṃ śabdaṃ vādayiṣyati' iti.
(TaVā 1.16.16)