Complex sentence: Some songs for the album have been recorded in demo form for a number of years, and originally reported to be released in Summer 2007 by the album trailer released on February 4,2007 YouTube.com.
Split into simpler sentences: Some songs for the album had previously been recorded in demo form for a number of years. Originally reported to be released in Summer 2007 by the album trailer released on February 4,2007 YouTube.com.