jagatuh -- They sang; sarva-bhutanam -- of all living beings; manah -- for the mind; sravana -- and ears; mangalam -- happiness; tau -- the two of Them; kalpayantau -- producing; yugapat -- simultaneously; svara -- of musical tones; mandala -- by the entire scale; murcchitam -- augmented.

Krishna and Balarama sang, producing the entire range of musical sounds simultaneously. Their singing brought happiness to the ears and minds of all living beings.