Classical guitar making classical guitar today is the Spanish guitar: usually fan-braced and strong in fundamental. While fan-braced Spanish (Torres, post-Torres style) instruments coexisted with traditional central European ladder-braced (19th-century style) guitars at the beginning of the 20th century, the central European guitars eventually fell away. Some attribute this to the popularity of Segovia, considering him "the catalyst for change toward the Spanish design and the so-called 'modern' school in the 1920s and beyond". The styles of music performed on ladder-braced guitars, were becoming more and more unfashionable; and e.g. in Germany musicians were in part turning towards folk-style music (Schrammel-music and the
Classical guitar style of the particular period. As an example: It is impossible to play a historically informed de Visee or Corbetta (baroque guitarist-composers) on a modern classical guitar. The reason is that the baroque guitar used courses, which are two strings close together (in unison), that are plucked together. This gives baroque guitars an unmistakable sound characteristic and tonal texture that is an integral part of an interpretation. Additionally the sound aesthetic of the baroque guitar (with its strong overtone presence) is very different from modern classical type guitars, as is shown below. Today's use of Torres and post-Torres type guitars