The Guitar Zombie Gear Walkthrough - Mastodon´s Bill Kelliher by The Guitar Zombie - YouTube
Bill Kelliher - The Sound and The Story | Learn how to craft riffs that hearken back to metal's glory days, with a good infusion of punk rock attitude and progressive style | FRET12
Bill Kelliher Gear Guide – The Emperor of Sand Sound
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Mastodon's Bill Kelliher says ESP is working on a new signature “reverse” Sparrowhawk | MusicRadar
Mastodon - Bill Kelliher Guitar Rig Gear and Equipment