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Bastien,THEORY BOOSTERS: MAJOR KEY SIGNATURES [KJOS:KP21]
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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: MAJOR KEY SIGNATURES [KJOS:KP21]
![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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![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]")
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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 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: 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: INTERVALS THROUGH A FIFTH [KJOS:KP26]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/179469/225069/KP26__72087.1475175939.jpg?c=2 "Bastien,THEORY BOOSTERS: INTERVALS THROUGH A FIFTH [KJOS:KP26]")
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![Bastien,THEORY BOOSTERS: LINES AND SPACES NOTE SPELLER [KJOS:KP23]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/179466/225066/KP23__94353.1475175938.jpg?c=2 "Bastien,THEORY BOOSTERS: LINES AND SPACES NOTE SPELLER [KJOS:KP23]")
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![Bastien,THEORY BOOSTERS: LEDGER LINES NOTE SPELLER [KJOS:KP28]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/179471/225071/KP28__06638.1475175940.jpg?c=2 "Bastien,THEORY BOOSTERS: LEDGER LINES NOTE SPELLER [KJOS:KP28]")
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![Bastien,THEORY BOOSTERS: MIDDLE C NOTE SPELLER [KJOS:KP22]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/179465/225065/KP22__71038.1475175937.jpg?c=2 "Bastien,THEORY BOOSTERS: MIDDLE C NOTE SPELLER [KJOS:KP22]")
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