Through a process of personalization which reinforces El Hijo's identity, Abel Hernandez (ex-singer of Migala, one of the best Spanish independent bands of all time) has managed to modulate his voice in the four cover versions found in this second release, overtly called Canciones Gringas (Gringo songs). Cover versions tend to be based on someone else's work with the aim to present a more defined image of the interpreter. Ignoring the continuous attempts to underrate this form throughout rock's history, covers have assured their survival mainly thanks to the evolution of the interpreter's role, who rereads and remodels the original to serve their own understanding and diagnosis.