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Roland FR-4x V-Accordion official product page
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Roland FR-4x
Accordion · Japan
A mid-range digital V-Accordion from Roland with a 37-key piano-type treble keyboard and 120 bass buttons. It models a wide range of accordion voices alongside orchestral, organ, and drum sounds, uses pressure-sensing bellows control and 128-note polyphony, and includes onboard amplification, a recorder, USB, and expansion slots. It sits between the compact FR-1x and the flagship FR-8x in Roland's V-Accordion line.