J. S. Bach. A structure of pain is the fruit of a long and continuous reflection on the ultimate meaning of the work of the brilliant German composer. An approach to the immense Bachian work such as that proposed by Soler is only possible when it is a deep reflection on its meaning, which goes beyond purely musical analysis - although it occupies a central place in the book - until reaching a Religious, existential and metaphysical dimension that opens new avenues of understanding of a universe whose richness is revealed as inexhaustible.