besides the stylistic differences, another new aspect in "use your illusion i" was longer songs. "november rain", an epic ballad, is nearly nine minutes long, and "coma" is more than 10 minutes. another change was the presence of tracks sung by other members of the band (even though certain songs from "appetite for destruction" and "g n' r lies" featured other members on duet vocals): lead vocals on "dust n' bones," "you ain't the first" and "double talkin' jive" are performed by rhythm guitarist izzy stradlin. in addition, "14 years" and "so fine" from "use your illusion ii" were sung by izzy stradlin and duff mckagan, respectively.