Interpolation

What is a interpolation in music?Is it legal to interpolate a song?What is difference between interpolation and up sampling?What is a interpolation in...

What is an interpolation in music?Is it legal to interpolate a song?What is difference between interpolation and up sampling?What is an interpolation ...

What is interpolation in sampling?Is an interpolation a sample?Is interpolation in music legal?What is interpolation in sampling?In popular music, int...