Alexander Perls, creator of 009 Sound System, unknowingly spawned what would be the pinnacle of early YouTube nostalgia. As the name suggests, 009 Sound System started in 2009 as a trance music project. Under this name, Perls has only released one album.

YouTube’s AudioSwap feature was introduced in 2007 as a way to combat using copyright music in videos. Two years later, Perls' music would appear first alphabetically on the AudioSwap music list, specifically the song Dreamscape. This has caused a number of his songs to become overused on YouTube from approximately 2009 to 2012. People usually found his music obnoxious at the time, but it would later be honored and acknowledged due to the nostalgia it brings.

Apart from YouTube, 009 Sound System is also known for including religious themed lyrics in its songs.