She's mentored public-school children in Boston who are interested in stringed instruments.

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According to sales data, during the past 35 years the returns for high-end stringed instruments have vastly exceeded the performance of American stocks (see chart).

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But Arborea is mostly an experimental album, with the Currans bowing and plucking their stringed instruments to create spacey, ambient drones more than standard chord progressions.

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The school specializes in Arabic instruments such as the kanoun, a triangular stringed instrument a little like a horizontal harp, and the oud, a pear-shaped stringed instrument similar to a lute, and also teaches Western classical instruments and music theory.

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