How many letters in English alphabet

Construct all twelve major scales, in both treble and bass clefs, on manuscript paper using the formula wwhwwwh. use any note (or a whole note) to construct your scale. make sure that you include all of the symbols, such as sharps, flats, treble clef, and bass clef signs. pay close attention to detail when constructing symbols and placing your sharps and flats to the left of the corresponding note. identify your scales with capital letters symbolizing the major scales. write the names of the notes below the corresponding notes.

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Who was the first musical composer?