Like most of Massive Attack 's albums , the music often forgets about categorisation , ranging from R&B ( title track , Sly ) to hip hop\/rap ( Karmacoma , Eurochild ) to reggae-tinged synthpop ( Spying Glass ) to classical-influenced electronica instrumentals ( Weather Storm , Heat Miser ) . Like most of Massive Attack 's albums , the music often defies categorisation , ranging from R&B ( title track , Sly ) to hip hop\/rap ( Karmacoma , Eurochild ) to reggae-tinged synthpop ( Spying Glass ) to classical-influenced electronica instrumentals ( Weather Storm , Heat Miser ) .