Few instruments are as close to the present as the accordion is. Its own history has defined it: the chromatic accordion, in its present form, dates back to the mid-nineteenth century, but its great evolution in repertoire has not begun until the middle of the twentieth century. Therefore, it is a young instrument compared to others such as the violin or the flute, but it has been precisely the path it had not traversed what has marked the spectacular growth of the accordion in the last decades. Basque performer Iñaki Alberdi does not hesitate to say that the accordion “is the most relevant instrument of the second half of the 20th century and what has passed of the 21st. It is evolving at a great speed and all composers write for it.” Alberdi warns, however, that “in this process, it is important for the accordionists to get involved and support them.”