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Amazon.com: Alesis SR-18 - Studio-Grade Standalone Drum Machine With On-Board Sound Library, Performance Driven I/O and In-Built Effects / Processors : Alesis: Musical Instruments
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Amazon.com: Alesis SR-16 - Studio-Grade Standalone Drum Machine With On-Board Sound Library, Performance Driven I/O and In-Built Effects : Alesis: Musical Instruments
Alesis HR-16 drum machine used by Prince Paul | National Museum of African American History and Culture
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