Most chipmunk channels from 2009 onwards do a lazy attempt of upping the pitch on music.
They up the pitch on the entire song, so any instruments played during the song will also be high pitch.
But with current neural network technology today, we can now use machine learning to separate a song into an acapella and instrumental.
After making countless alvin and the chipmunk memes on the Kippykip channel, I've decided to make a dedicated channel just for these chipmunk song sh!tposts.