Her aunt, recognizing a young talent, suggested that Charlotte's mother take her to a singing teacher.

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Martin soon found her calling not as a pop diva, but as a voice teacher, founding the Vocal Workout Singing school in 2001.

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Ms Bovill, who is performing Piaf until 24 August, gave up her profession as an English and French teacher to pursue a career in singing.

BBC: Edith Piaf writer Charles Dumont performs in Edinburgh

Clapping and singing echo across the central courtyard, as a teacher leads a group of doll-like eight- and nine-yearold girls in a dance lesson.

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