He has learnt from Vishvavasu's son both vocal and instrumental music and also singing and also the reciting of the Sama (Veda) as thoroughly as they should be learnt.
विश्वावसोस्तु तनयाद् गीतं नृत्यं च साम च। वादित्रं च यथान्यायं प्रत्यविन्दद् यथाविधि॥