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Source for my music video on Gershwin's Limehouse Nights
"""
Code for a music video where sheet music is
scrolled transparently on my hands playing the
piano. See that effect here:
https://www.youtube.com/watch?v=V2XCJNZjm4w
"""
from moviepy.editor import *
from moviepy.video.tools.drawing import color_gradient
# === THE SOUND - FROM A MICROPHONE
audio = AudioFileClip("./pianowav2.wav")
audio_shifted = CompositeAudioClip([audio.set_start(.55)])
# === MY HANDS PLAYING THE PIANO
# layered semi-transparent mask
piano = ( VideoFileClip("./limehouse_me.mp4")
.subclip(0.5, 36)
.set_audio(audio_shifted)
.set_mask(mask))
W,H = piano.size
mask = ImageClip(color_gradient(piano.size,
p1=[0,0], p2=[0, 2*H/3],
col1=1.0, col2=0), ismask=True)
piano = piano.set_mask(mask)
# === THE SHEET-MUSIC, WITH A SCROLLING EFFECT
sheet = ( ImageClip("./final.png")
.fx( vfx.scroll,h= 1.5*H, y_speed=43)
.set_duration(piano_s.duration)
.fx( vfx.freeze_at_start, .5)
.resize(width=W))
# === PIANO AND SHEET MUSIC PUT TOGETHER
piano_sheet = ( CompositeVideoClip(
[sheet, piano], size=[W,H])
.set_duration(piano_s.duration)
.fx( vfx.freeze_at_start, .5)
.audio_fadeout(5)
.fadein(1).fadeout(5))
# === PANELS AT THE END
licence = (TextClip("This video is licenced under a\n"
"Creative Commons Attribution 3.0 "
"Unported License.\n"
"The sheet music is free, and freely available.\n"
"© A. de Lamarmotte, 2014",
color="white", bg_color="black",
font="Amiri-Bold", fontsize=22,
size= [W,H])
.set_duration(4)
.fadein(1).fadeout(1))
made_with_moviepy = ( ImageClip('logo_white.png')
.resize(width=0.6*W)
.on_color(size= [W,H],
pos=('center',H/5))
.set_duration(4)
.fadein(1).fadeout(1))
# === FINAL COMPOSITION
final = concatenate([piano_sheet, licence, made_with_moviepy])
final.to_videofile('final.mp4', fps=24, bitrate="6000k",
audio_bitrate='500k')
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