Sonic Youth Sonic Nurse (Geffen) The implications of the word 'Youth' for a band on their 19th album may seem a little inappropriate. But 23 years since their inception, Sonic Youth remain as challenging a proposition as ever. And Sonic Nurse is up there with their best work, full of signature squalling feedback and tuneless rock-outs that rub shoulders with intricate, delicate melodies. It's a refreshingly slow-burn in the imagination, too. These tunes demand patience and are ultimately rewarding because of that, with Dripping Dream and Stones among the stand outs. They can still court controversy, too. Kim Gordon and the Arthur Doyle Hand Cream is notable in that the 'Kim Gordon' part should actually read 'Mariah Carey', but was substituted at the last minute due to legal implications. The diva nevertheless remains the subject of the excruciating, ear-bleeding tune that takes five minutes to reach a groaning conclusion. 'Hey, hey little baby break down/ Button-up baby you come undone,' is Kim Deal's unveiled reference to Carey's difficulties from two years ago, sung amid what sounds like a bout of constipation. It's the only low point. Dude Ranch Nurse sways with narcotic wooziness, while finale Peace Attack is both a gentle jam and the most straightforward piece. With the boundaries of rock'n'roll risk-taking shrinking these days, the Youth sound as fresh, vital and evergreen as ever.