Constant Nymph (Mainstream Series)
by Margaret Kennedy
Category: Large type books.

Tessa is the daughter of a brilliant bohemian composer, Albert Sanger, who with his "circus" of precocious children, slovenly mistress, and assortment of hangers-on, lives in a rambling chalet high in the Austrian Alps. The fourteen-year-old Tessa has fallen in love with Lewis Dodd, a gifted composer like her father. Confidently, she awaits maturity, for even his marriage to Tessa's beautiful cousin Florence cannot shatter the loving bond between Lewis and his constant nymph.