Below, a few samples of Sonia’s voice and work, which has been referred to by critics in Brazil “as one of the most expressive vocalists of her generation.”
| Source | Composer | Title |
|---|---|---|
| A Canção Brasileira | Lorenzo Fernandez | Noturno |
| A Canção Brasileira | Villa- Lobos | Canção do Poeta |
| A Canção Brasileira | Guerra-Peixe | A Viola pela Prima |
| Rodinha | Chico Buarque | Beatriz |
| Make someone happy | Tom Jobim Vinicius de Moraes Chico Buarque |
Olha Maria |