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<music21.note.Note A> 0.0
<music21.note.Note A> 0.0
<music21.note.Note A> 0.0
<music21.note.Note A> 0.25
<music21.note.Note G> 2/3
<music21.note.Note G> 2/3
<music21.note.Note F#> 1.0
<music21.note.Note F#> 1.25
<music21.note.Note D> 1.5
<music21.note.Note D> 1.5

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from music21 import converter, instrument, note, chord, stream
import glob
import pickle
import numpy as np
from keras.utils import np_utils

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np.diag(a)

Output: array([1, 2, 3, 4])
  

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a = np.diag([1,2,3,4])
print(a)

Output:
[[1 0 0 0]
 [0 2 0 0]
 [0 0 3 0]
 [0 0 0 4]]
 

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a = np.eye(5)
print(a)

Output:
[[1. 0. 0. 0. 0.]
 [0. 1. 0. 0. 0.]
 [0. 0. 1. 0. 0.]
 [0. 0. 0. 1. 0.]
 [0. 0. 0. 0. 1.]]

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a = np.ones(5)
print(a)

Output: [1. 1. 1. 1. 1.]
  
  
a = np.ones((5,5))
print(a)

Output:

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a = np.zeros(4)
print(a)

Output: [0. 0. 0. 0.]
  
a = np.zeros((3,4))
print(a)

Output:
  [[0. 0. 0. 0.]

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a = np.array([[[1,2],[3,4]],[[5,6],[7,8]]])
print(a)

Output:
  [[[1 2]
  [3 4]]

 [[5 6]
  [7 8]]]
  

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a = np.array([[1,2,3,4],[5,6,7,8]])
print(a)

Output:
  [[1 2 3 4]
 [5 6 7 8]]
  

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a = np.linspace(1,10,5)
print(a)

Output:
  [ 1.    3.25  5.5   7.75 10.  ]