Earliest seen Release is 1987 https://www.discogs.com/El-Choclo-Original-Tango/master/522864 From Cover Art of [https://www.discogs.com/El-Choclo-Original-Tango/master/522864|Original Tango] Release: El Choclo consist of; Gerrit Hommerson (accordion/bandoneon), Eddy van Dijken (grand piano), Hub Mathijsen (violin), Arlia de Ruiter (violin), Erik-Jan Kromhout (violin), Arno Vrijens (violin) Guibert Vrijens (bass), Dick van der Harst (acoustic guitar), Nanette Currie (vocals), and Juan Tajes (vocals) Appears that this group had one recording period that resulted in "Original Tango" Releases. And that all subsequent Releases through 2019 are overwhelmingly based on Recordings featured in that Release.