Help for RB 4 : r/GuitarHero

Old Guitar Hero, Rock Band instruments will be compatible with Rock Band 4

Rock Band 4 - Wikipedia

GS-1000 Pro+

These Guitar Hero and Rock Band accessories are worth some big bucks

Rock Band 3' way better than 'Guitar Hero' – Colorado Daily

Guitar Hero Live beat Rock Band 4 by ditching everything we knew about rhythm games - Polygon

Rock Band 4 reviews round-up - are music games back for good?

DOYO Guitar Hero Controller for PC and PS3, Wireless Guitar for Guitar Hero 3/4/5 and Rock Band 1/2 Games, Guitar Hero Guitar with strap (5 Keys/White) : Video Games

V2 Wii Adapter for Clone Hero and RB4 (Rock Band 4) – RetroCultMods.com

PDP reveals Riffmaster guitar controller for Rock Band 4, Fortnite Festival

Recommended Guitars

The Rise of Guitar Hero, Rock Band, and Rhythm Gaming