How to Use the Four Cable Method - Guitar Gear Finder
GT-100 Tip: Four Cable Method - Roland Resource Centre
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Amazon.com: Boss GT-100 Guitar Multi-Effects Pedal Bundle with Roland 10ft Instrument Cable, Roland 6in Patch Cable, and Picks : Musical Instruments
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effects pedal - Using a looper with the 4-cable-method (4CM) - Music: Practice & Theory Stack Exchange
GT-100 Tip: Four Cable Method - Roland Resource Centre
What is 4 Cable Method & How Do You Use It? - Andertons Blog