melodiously, sonorously, tunefully
Она мелодично пела старую песню.
She sang the old song melodiously.
Она говорила медленно и певуче, растягивая слова.
She spoke slowly and melodiously, drawing out the words.
Актриса читала стихи певуче, будто пела.
The actress recited the poems melodiously, as if she were singing.