 The Animals' recording is propelled by a bass guitar riff from Chas Chandler, soon joined by an electric twelve-string guitar riff from Hilton Valentine.In the view of musicologist Walter Everett, the doubled line gives the song its strength.The organ part by Dave Rowberry (Alan Price's replacement) gives the track the sound that distinguishes the Animals from other "British Invasion" groups, its darker timbre differing from Mike Smith of the Dave Clark Five, for example.