we constructed a pentatonic scale (F# G# AF CE DE) starting from G; using fifths (string...
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we constructed a pentatonic scale (F# G# AF CE DE) starting from G; using fifths (string ratio 3:2) and octaves (2:1). A musical fourth (the next most consonant interval) is a ratio of 4:3. (a) Show mathematically that if from any note you go up a fifth (3:2) and then a fourth (4:3) you will have gone up one octave (2:1). [For example C-G is a fifth and G C is a fourth. Since you can turn a fifth into a fourth by "inverting" the notes (GC vs CG), we say the fourth is the inversion of the fifth.] (b) Instead of constructing a scale using fifths, try fourths. Starting from G#, what are the next two notes going up by fourths? Down by fourths? [A forth corresponds to moving 5 keys on the keyboard rather than 7.] Compare the 5-note scale you construct this way to the one we constructed in class using fifths. Does the concept of inversion illuminate this result? DE GA B DE C# D# C D F# G# A CDEFGABCDEFGABCDEFG GA B F G A DE G C# D# F# we constructed a pentatonic scale (F# G# AF CE DE) starting from G; using fifths (string ratio 3:2) and octaves (2:1). A musical fourth (the next most consonant interval) is a ratio of 4:3. (a) Show mathematically that if from any note you go up a fifth (3:2) and then a fourth (4:3) you will have gone up one octave (2:1). [For example C-G is a fifth and G C is a fourth. Since you can turn a fifth into a fourth by "inverting" the notes (GC vs CG), we say the fourth is the inversion of the fifth.] (b) Instead of constructing a scale using fifths, try fourths. Starting from G#, what are the next two notes going up by fourths? Down by fourths? [A forth corresponds to moving 5 keys on the keyboard rather than 7.] Compare the 5-note scale you construct this way to the one we constructed in class using fifths. Does the concept of inversion illuminate this result? DE GA B DE C# D# C D F# G# A CDEFGABCDEFGABCDEFG GA B F G A DE G C# D# F#
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Essentials Of Statistics For The Behavioral Sciences
ISBN: 9781464107771
3rd Edition
Authors: Susan A. Nolan
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