Adverb
in a melodious manner
Source: WordNetYes, truly, it is a great thing for a Nation that it get an articulate voice; that it produce a man who will speak forth melodiously what the heart of it means! Thomas Carlyle
The Bhṛṅgadūtam should be read, melodiously sung and contemplated upon day in and day out by the devotees of Lord Rāma. Rāmabhadrācārya
she sang melodiously Source: Internet