The V-Accordion

Around the middle of the 19th century, a new concept that involved a bellows and a free-reed mechanism was developed in Central Europe. It heralded the introduction of a totally new instrument - the acoustic accordion.

Since then, its unique character, portability, and variety of sounds have made the accordion a tremendously popular instrument all over the world. Due to its complex mechanism and portability, the acoustic accordion long appeared an instrument that couldn't be improved using digital technology.

Until Roland introduced the V-Accordion series - the first instruments of their kind to provide powerful digital modelling technology in a traditional, immediately familiar, accordion design, and with performance functions and authentic sounds that appealed to a wide range of players.

PBM (Physical Behaviour Modelling)
At the heart of the V-Accordion is Roland’s new, proprietary PBM sound engine and modelling technology. Physical Behaviour Modelling uses complex algorithms to accurately recreate an acoustic accordion’s sound characteristics. The result is a faithful simulation of the actual physical behaviour and expressive nuances of an acoustic instrument.

Bellows Movement Modelling
PVA (Pressure Variant Amplifier)
This function controls the dynamics of each reed sound, based on the high-resolution bellows pressure sensor. Starting and stopping, hysteresis threshold, inertia, expression curve, and volume are all individually programmed to reproduce a true free-reed sound.

PVF (Pressure Variant Filter)
The tone colour of each reed sound is also shaped in real-time by the dedicated DSP (Digital Signal Processor), responding accurately to each expressive playing nuance applied by the bellows. PVP (Pressure Variant Pitch) The pitch of each simulated reed is varied individually. As the bellows is pushed or pulled more forcefully, the sound becomes fatter and richer, because each simulated reed exhibits a “natural” tendency to go out of tune.

Musette Tuning
Based on extensive research of the different tuning types used throughout the world the V-Accordion’s note-by-note micro-tuning feature allows a V-Accordion to authentically reproduce many different accordion types for various genres of music.