The uploader explains that the eleven tracks come from a CD a music teacher gave them in 2005, when they were in the fifth year of school, to help improve their recorder playing. The tracks were later shared online as rare material from that classroom era, which explains the old school tags and practice focus around the series. Part six belongs to the same set and is kept for its soft melody and nostalgic link to beginner music lessons, ensemble practice and the simple recordings many students used at home.