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BOSS SY-1 Synthesizer + Expression Pedal, Delay, Reverb, Fuzz
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Boss SY1 Synthesizer Pedal Demo & Track - Dan Leggatt
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THE BOSS OF SYNTH PEDALS? | Boss SY-1 Synthesizer
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What Amateurs Don't Understand About Guitar Tone
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Hidden features of the Boss SY-1
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