You read that preview text correctly, this guy played every single orchestral instrument, recorded the audio, and filmed it to create a "one man orchestra." He did not copy-paste one take to multiple instruments, he played every single part individually as if it were an actual orchestra. Pretty impressive that he can play all these instruments and make them sound as natural as they do with overdubs. This probably took a lot of time and patience, so it's definitely worth checking out and supporting this guy's music!
Who are some of your favorite multi-instrumentalists?