GT-1B Quick Start chapter1 : Getting Ready

GT-1B Quick Start chapter2 :Tuning the Bass Guitar

BOSS GT-1B Bass Effects Processor

GT-1B Quick Start chapter4 : Effect Edit

GT-1B Quick Start chapter6 : Setting for CTL1 Pedal

GT-1B Quick Start chapter7 : Looper

Boss GT-1B Bass Effects Processor

Boss GT-1B BASS effects processor - quick overview/demo

Review Demo - Boss GT-1B

Bass Presets GT-1B Boss I Denis Silva

【池部楽器店】BOSS GT-1Bを早速試奏しました！

BOSS GT-1B PATCH P01 to P10 Bass Effects Processor TEST

Who's the Bass Boss? The GT-1B is!!!

PEDALEIRA BOSS GT 1B - PEDALEIRA DE BAIXO DA BOSS - PEDALEIRA BOSS GT1B VALE A PENA? BOSS GT1B É BOA

The weirdest effects on the BOSS GT1-B!

Driver e interfaz boss GT-1 en español

Boss GT-1B multifunctional processor for bass players

GT-1B Quick Start chapter8 : Selecting the Patch Easily - EASY SELECT -

Configurando a GT-1B Modo Stomp

Boss GT1B - Part 3 - Preamps

GT-1B Quick Start chapter3 : Playing