The Lyric HG Guitar CableDESCRIPTION The Lyric HG is a reference level guitar cable that disappears from the signal path. Our proprietary single solid core IGL (Increased Grain Linearity) utilizes copper conductors for positive and negative runs for the signal path. The negative effects of strand interaction are completely eliminated from the guitar signal. The braided shield provides outstanding noise rejection and is attached at one end only to bleed interference to ground.