Based on the search results, the code appears to be a partial link associated with a video of Matt Scannell of Vertical Horizon explaining the lyric-writing process for their album, "Echoes From The Underground".
This behind-the-scenes video highlights the : _ygrvhmp4
The content is from a Pledge Update 11.11.30 Lyric Writing - YouTube video published in 2014. Based on the search results, the code appears