What Is a Concert Accordion?
Picture an accordion and you might imagine a village dance or a café terrace. But in the concert hall the instrument becomes something else entirely: a refined classical voice capable of Bach fugues, Piazzolla tangos and the boldest contemporary music. This is the concert accordion.
A classical instrument, not just a folk one
The concert accordion — sometimes called the classical or chromatic accordion — is built for the recital stage rather than the dance floor. Its right hand offers a full chromatic keyboard, and its sound can move from the faintest whisper to a great organ-like swell, all shaped by the bellows.
That expressive range is why it has earned a place alongside the piano and violin in conservatories across Europe, including the Academy of Music in Ljubljana, where Mile Viero trained.
Free-bass: the key difference
The biggest difference from a folk accordion lies in the left hand. A traditional instrument uses a 'Stradella' system of preset chords — wonderful for accompaniment, but limiting for art music. A concert accordion adds a free-bass (or converter) system, giving the left hand its own full chromatic range.
With independent voices in both hands, an accordionist can finally play a Bach fugue, a Scarlatti sonata or a complex modern score exactly as written.
From Bach to Piazzolla — and beyond
The concert repertoire is far wider than most listeners expect. It spans Baroque transcriptions (Bach, Scarlatti, Rameau), original twentieth- and twenty-first-century works written specifically for the instrument, the tangos of Astor Piazzolla, film music and crossover.
Many players, Mile Viero among them, also carry the folk and sevdah traditions of the Balkans into the same programme — proof that one instrument can hold both the concert hall and the celebration.