Giulio Negrini Guitars - GNG - GNG Brea HL6TTS True Temperament Sustainer Inspired from the PK2 (Claudio Pietronik's second signature) with True Temperament Fretting, Sustainer, and other features. Added the glow in
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Claudio Pietronik - The Rock Pentatonic Roadmap is Coming Really Soon! JTC Guitar LAB Audio Technology Giulio Negrini Guitars - GNG Elixir Strings | Facebook
Claudio Pietronik: Melodic Rock Improvisation
The Divine Battlecry - Claudio Pietronik | JTCGuitar.com - YouTube
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The third GNG for my... - Giulio Negrini Guitars - GNG | Facebook
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Claudio Pietronik guitarist - LAB Audio Technology Cables Store - Artist