[ noun ]
the property of having a melody
<noun.attribute>

Melodious \Me*lo"di*ous\, a. [Cf. F. m['e]lodieux. See
{Melody}.]
Containing, or producing, melody; musical; agreeable to the
ear by a sweet succession of sounds; as, a melodious voice.
``A melodious voice.'' ``A melodious undertone.''
--Longfellow. -- {Me*lo"di*ous*ly}, adv. --
{Me*lo"di*ous*ness}, n.