Roland R-8 - SynthmaniaRoland R-8. Human Rhythm Composer. The R-8 was the standard studio drum machine of the early '90s (and to a degree, is still used today). The editing.roland r machine,Roland R-70 | Vintage Synth ExplorerThe R-70 is a full sized and very popular all purpose drum machine. Sounds are based on digital sample-playback drums which are all very good sounding and.
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