Most classical musicians, whether in orchestral or ensemble situations, will have to face a piece by composers such as Ligeti, Messiaen, Varese or Xenakis, while improvisers face music influenced by Dave Holland, Steve Coleman, Aka Moon, Weather Report, Irakere or elements from the Balkans, India, Africa or Cuba. Rafael Reina argues that today's music demands a new approach to rhythmical training, a training that will provide musicians with the necessary tools to face, with accuracy, more varied and complex rhythmical concepts, while keeping the emotional content. Reina uses the architecture...