Voice: Alejandro Sanz - Recording Arranger: Julio Reyes Copello - String Arranger: Julio Reyes Copello - String Arranger: Carlitos López - Piano: Gonzalo Rubalcaba - Guitar: Daniel Uribe - Organ: Shaun Dash - Bass Guitar: Armando Gola - Strings: The City of Prague Philarmonic Orchestra - Recording Engineer: Julio Reyes - Recording Engineer: Nicolás Ramírez - Recording Engineer: Jan Holzner - Contracting With: James Fitzpatrick - Vocal Engineer: Rafa Sardina - Vocal Producer: Rafa Sardina - Mixer: Nicolás Ramírez - Producer: Julio Reyes Copello - Mastering Engineer: Carlos Hernández Carbonell