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Boss SY-1 Polyphonic Guitar Synthesizer Pedal - Prymaxe
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Boss SY-1
Boss SY-1 Synth Pedal
Guitar Pedal X - GPX Blog - Boss Delivers Monster New King of Guitar Synthesizers - the Polyphonic 3-Voice and 3-Engine, Twin Step Sequencer, 150+ Effects SY-1000
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THE BOSS OF SYNTH PEDALS? | Boss SY-1 Synthesizer - YouTube
Boss SY-1
