DadgadCafe

import numpy as np

# linspace：创建线段

arr = np.array([[1, 2, 3]
                [4, 5, 6]], dtype=int32) # list to matrix

arr.ndim # 2 dimensions
arr.shape # 2 * 3
arr.size # number of elements

DadgadCafe

function _go(g, step) {
  while(!step.done) {
    //run the closure function
    const [state, value] = step.value()

    switch (state) {
      case "park":
        // just wait, add to eventloop
        // setImmediate(function() { _go(g, step) })
        setTimeout(function() { _go(g, step) })

DadgadCafe

const arr = Array(5).fill([true]))
arr[0][0] = false
console.log(arr) //guess what!

DadgadCafe

1. C - Dm => C - C#dim7(A7) - Dm; F - G => F - F#dim - G
2. minor, half note down... michelle the beatles
3. 4736251 + leading bass 1765.., secondary domiant
4. passing chord
5. V7 half note down... C - Bb7 - A7 - Ab7 - G7 - any major
   reason: multiple dominant fuzz the tonality
6. mode - color
   minor dorian
   major lydian
   dominant phrygian-dominant