The following scheme is very useful, when you study not only "Shree AhirBudhnya-Samhita", but other Granthas of the Orthodox Vaishnava-PanchaRatra ("Shree Lakshmi-Tantra", "Shree Parama-Samhita", "Shree Iswara-Samhita" and many others!).
This scheme was extracted by me from "Pancaratra Samhitas & Early Vaisnava Theology" by Mitsunori Matsubara [#link to pdf-scan].
Vishnudut1926, Moscow, 19-January-2019