 In a short essay describing Stockhausen 's influence on his own work , Richard Barrett concludes that " Stockhausen remains the composer whose next work I look forward most to hearing , apart from myself of course " and names as works that have had particular impact on his musical thinking Mantra , Gruppen , Carré , Klavierstück X , Inori , and Jubiläum ( Barrett 1998 ) . 
