One of the major reasons why we love the internet is the way it brings us amazing videos from time to time.
This is video of a clarinettist playing four parts of Brahm’s Hungarian Dance No.5. He filmed himself playing each of the parts of the song and placed them all together.
The Brahm’s Hungarian Dance No.5 in the video was inspired by an app which they were auditioning for. There are plenty of similar videos which were submitted as part of the acapella app and used to produce amazing tunes. Here is the clarinet video from cortezimoto.