Python MIDI programming, a piano tile app. смотреть онлайн

MIDI stands for Musical Instrument Digital Interface. I recently discovered Python which can develop MIDI software applications much easier than C/C++. Although this YouTube video illustrates only a simple Python program, it has all the essential techniques and the framework for MIDI graphic programming. I hope this program opens the door for students' and researchers' explorations on music technology, computer music, interactive music performance, computer added composition and visual music.
Wilson Chao June 1st, 2021 in Taipei.

****** Source Code Below
"""
Python MIDI Graphic Running Program
By Wilson Chao, May 2021.
October 2021 remark
For rtmidi package, you need to install python-rtmidi
"""
import pygame
import mido
import rtmidi
pygame.init()
BLACK = [ 0, 0, 0]
WHITE = [255, 255, 255]
note_list = []
note_list_off = []
outport=mido.open_output()
inport=mido.open_input()
SIZE = [380, 380]
screen = pygame.display.set_mode(SIZE)
pygame.display.set_caption("Python MIDI Program by Wilson Chao")
clock = pygame.time.Clock()
done = False
while done == False:
for event in pygame.event.get():
if event.type == pygame.QUIT:
done=True
for msg in inport.iter_pending():
n = msg.note
x=(n-47)*10
if msg.velocity)0:
note_list.append([x, 0])
else:
note_list_off.append([x, 0])
for i in range(len(note_list)):
pygame.draw.circle(screen, WHITE, note_list[i], 10)
note_list[i][1] += 1
pygame.display.flip()
for i in range(len(note_list_off)):
pygame.draw.circle(screen, BLACK, note_list_off[i], 10)
note_list_off[i][1] += 1
clock.tick(200)
pygame.quit ()