Mostly slow and expressive pieces May serve as a basis for improvisation Include the practice of more sophisticated skills such as: Advanced pedalling Chord playing Wide skips More difficult keys Modulations Unusual scoring (main melody in the left hand or in the middle register) Play-Along CD The third volume of RockBallads includes a play-along CD which contains all pieces in a version with string accompaniment as well as the string accompaniment on its own in various practise tempos.