Marcelino Echeverria (Australian guitar Ricardo Louzao)

• Analia Rego (Australian model guitar Raul Velazquez)
• Sergio Moldavsky (Classical guitar Estrada Gomez)
• Carlos Martínez (Classical guitar Julian Rabaza)
• Scanavino & Bettinotti (Classical guitars Norberto Moreno & Ricardo Louzao)
• Roberto Moya (Classical guitar Loriente)
• Alejandro Ruscio (Clasical guitar R. Cucculelli)
• Alejandro Bordas (Classical guitar P. Lazzarini)
• Victor Villadangos (Classical guitar J. Pirozzi)
• Ariel Mascia (Classical guitar N. Moreno)
• Pablo De Giusto (Australian style guitar A. Altman)
• Alejandro Scanavino (T. Humphrey style guitar A. Altman)
• Bocaccio-Gallino (Classical guitars P. Lazzarini J. Garcia)
• Alvaro Robira (Classical guitar O. Pannunzio)
• Mitra Alvarez (Classical guitar Casa Nuñez 1933)
• Marcelino Echeverria (Australian style guitar Ricardo Louzao)
• Carlos Villalba (Australian style guitar Paula Lazzarini)
• Silvia Castro (Classical guitar Estrada Gomez)
• Martin Fedyna (Classical guitar Pablo Ali)
• Alejandro Jaime (Australian style guitar Raul Velazquez)
• Dúo Lázaro - Morillas(Classical guitars Fernando Orellano)
• Agustín Luna (Classical guitar Stoppani - Avecilla)
• Luis Carlos Barbieri(Australian style guitar Omar Pannuzio)
• Fabian Cardozo (Guitars Lazzarini and Moreno)
• Pablo Uriarte (Australian guitar Ricardo Louzao)
• Camilo Verga (Australian guitar Ricardo Louzao)
• Agustín Nazzeta (Traditional guitar Mendez Barbizán)