Dicey's Song by Cynthia Voight (The Tillermans #2, Good, 1984, Pbk, 211 pgs, Fawcett Juniper)

Cover has some wear; inside appears to be unmarked. ISBN 0449702766

A NEWBERRY MEDAL WINNER
Keeping her family together is what thirteen-year-old Dicey does best. But now that all four Tillerman children have found a new home with their grandmother, Dicey has to learn the hard lesson of letting go. Dicey's got other problems than finding her new role in the family: she's bored with everyone and everything at school and doesn't think anyone can tell her anything she wants to know. But slowly, Dicey discovers that everyone has something to teach, and life is a lesson that doesn't get easier . . .