FTP, identify this term whose most famous example may be Rachmaninoff's Opus 34, Number 14, a concert piece or vocal exercise which is sung to one or more vowels.
Heinrich Panofka published five volumes of them during the 19th century, and Peter Racine-Fricker composed one in 1965.  Jean-Antoine B?ard, in his L'Art du Chant, may have started the tradition from which these pieces are derived, as it included twenty works of Lully, Rameau, and others, as exercises.  Vaughan Williams composed three for soprano and clarinet in 1958.  FTP, identify this term whose most famous example may be Rachmaninoff's Opus 34, Number 14, a concert piece or vocal exercise which is sung to one or more vowels.
Heinrich Panofka published five volumes of them during the 19th century, and Peter Racine-Fricker composed one in 1965.  
vocalises