“All I’ve got is precious time,” W. Axl Rose sings in the title song of Guns N’ Roses’ new album, and he must be well aware of how that line sounds now. Mr. Rose, 46, the only remaining original member of Guns N’ Roses, needed 17 years, more than $13 million (as of 2005) and a battalion of musicians, producers and advisers to deliver “Chinese Democracy,” the first album of new Guns N’ Roses songs since 1991.