Mixed voices

from The Collaborative International Dictionary of English v.0.48
Mixed \Mixed\, a.
   Formed by mixing; united; mingled; blended. See {Mix}, v. t.
   & i.
   [1913 Webster]

   {Mixed action} (Law), a suit combining the properties of a
      real and a personal action.

   {Mixed angle}, a mixtilineal angle.

   {Mixed fabric}, a textile fabric composed of two or more
      kinds of fiber, as a poplin.

   {Mixed marriage}, a marriage between persons of different
      races or religions; specifically, one between a Roman
      Catholic and a Protestant.

   {Mixed number}, a whole number and a fraction taken together.
      

   {Mixed train}, a railway train containing both passenger and
      freight cars.

   {Mixed voices} (Mus.), voices of both males and females
      united in the same performance.
      [1913 Webster]
    

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