Matsya Purana — Rite and Layout for Consecrating Ponds
ततः सांवत्सरप्रोक्ते शुभे लग्ने सुशोभने वेदशब्दैश्च गान्धर्वैर् वाद्यैश्च विविधैः पुनः //
tataḥ sāṃvatsaraprokte śubhe lagne suśobhane vedaśabdaiśca gāndharvair vādyaiśca vividhaiḥ punaḥ //
Then, at the auspicious and splendid lagna prescribed for the annual observance, once again—amid the recitation of Vedic sounds, Gandharva songs, and many kinds of musical instruments—the rite should be performed.
This verse does not address Pralaya; it focuses on choosing an auspicious ritual moment (śubha lagna) and conducting a ceremonial act with Vedic recitation and music.
It highlights dharmic discipline: kings and householders should perform prescribed annual rites at properly chosen auspicious times, honoring the Veda and maintaining public religious culture through orderly ceremony.
Ritually, it stresses lagna-selection (muhūrta/astrological timing) and the use of Vedic sound, singing, and instruments as integral components of a formal ceremony—typical of temple and public rites described in the Matsya Purana.