The son of Satyavati (Vyasa) himself became the Brahma in that sacrifice, the best of the Dhananjaya race, Susama, became the chaunter of the Sama Veda.
स्वयं ब्रह्मत्वमकरोत् तस्य सत्यवतीसुतः। धनंजयानामृषभः सुसामा सामगोऽभवत्॥