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Bastien,THEORY BOOSTERS: MAJOR CHORDS [KJOS:KP19]
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![Bastien,THEORY BOOSTERS: MAJOR CHORDS [KJOS:KP19]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/179459/225059/KP19__83049.1475175935.jpg?c=2 "Bastien,THEORY BOOSTERS: MAJOR CHORDS [KJOS:KP19]")
![Bastien,THEORY BOOSTERS: MINOR CHORDS [KJOS:KP24]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/179467/225067/KP24__93709.1475175938.jpg?c=2 "Bastien,THEORY BOOSTERS: MINOR CHORDS [KJOS:KP24]")
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![Bastien,THEORY BOOSTERS: MAJOR KEY SIGNATURES [KJOS:KP21]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/179464/225064/KP21__45707.1524005571.jpg?c=2 "Bastien,THEORY BOOSTERS: MAJOR KEY SIGNATURES [KJOS:KP21]")
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![Bastien,THEORY BOOSTERS: NAMING ACCIDENTALS [KJOS:KP29]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/179472/225072/KP29__26534.1489774601.jpg?c=2 "Bastien,THEORY BOOSTERS: NAMING ACCIDENTALS [KJOS:KP29]")
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![Bastien,THEORY BOOSTERS: NAMING WHITE KEYS [KJOS:KP20]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/179463/225063/KP20__30008.1475175937.jpg?c=2 "Bastien,THEORY BOOSTERS: NAMING WHITE KEYS [KJOS:KP20]")
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![Bastien,THEORY BOOSTERS: MINOR KEY SIGNATURES [KJOS:KP25]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/179468/225068/KP25__70956.1475175938.jpg?c=2 "Bastien,THEORY BOOSTERS: MINOR KEY SIGNATURES [KJOS:KP25]")
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