Historically, the Pandava side is now fully 'voiced.' Drupada (the elder king), the five sons of Draupadi (the future of the lineage), and Abhimanyu (the son of Arjuna and Subhadra) join in. By addressing Dhritarashtra as Pṛthivī-pate (Lord of the Earth), Sanjaya is subtly reminding the King that the very 'Earth' he thinks he owns is about to be shaken by this combined sound. It is a moment of total military readiness.