Companies etc Recorded At – Estudios T.N.T. Credits Bass, Lead Vocals, Songwriter – Willie Quiroga* Drums – Rubén Basoalto Engineer – Julio Costa (2), Osvaldo Casajus, Salvador Barresi, Tim Croato Guitar, Violin, Piano, Lead Vocals, Songwriter, Lyrics By – Ricardo Soulé Orchestrated By – Roberto Lar Rhythm Guitar, Backing Vocals, Songwriter – Juan Carlos "Yody" Godoy*