Bhagavad Gita 13.4
ऋषिभिर्बहुधा गीतं छन्दोभिर्विविधैः पृथक्।ब्रह्मसूत्रपदैश्चैव हेतुमद्भिर्विनिश्िचतैः॥
ṛṣibhirbahudhā gītaṃ chandobhirvividhaiḥ pṛthak |brahmasūtrapadaiścaiva hetumadbhirviniśिcataiḥ ||
Sages have sung in many ways, with various distinctive chants and also with suggestive words indicative of the Absolute, full of reasoning and decisive.
Seers have sung of it in various ways, in many hymns and sacred Vedic songs, weighty in thought and convincing in their arguments.
Our plain-language meaning of this verse is waiting for scholar review.