What is main,dual and split voice 'Octave' || Yamaha psr-i455.

Hello friends,
welcome back to my another youtube video.
~in this video I am talk about what is main,dual and split 'octave'.
~the octave is compound of 12 scales. by this function you can change the sound of each octave.
~in this video I am give you the entire details of this function.
~link of what is main,dual and split voice and how to set it's volume
• What is main,dual and ...
~link of all functions ditailed video
• Functions of Yamaha ps...
~link of how to learn piano with easiest way
• learn piano with easie...
~link of some small function shorts
• Shorts for functions o...
~link of how to modify the voices in yamaha psr-i455
• Modification of voices...
~link of piano tutorial playing by me
• Piano tutorial
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[@udshukla2011]

U started to analyse from dirrect bsc lable, sorry to say not very clear. Best way to teach with practical.

[@peraldonald89]

Time boht waste krty Hain Kam ki bat btayen in short