ACCREA ACCREA Accordions is a professional studio dealing with repair, tuning and the research on the sound of uvular instruments. It is a place, in which musical, scientific and design fascination is meeting. Our team is a group of fans - of musicians and engineers, delighted with sound and the structure of accordions, 'bajan', 'bandoneon' and Polish concertinas. MORE
ACCREA Engineering




Our current and complited projects.
Harmonia MORE



    We design and build instruments. We would like to maintain the tradition of Polish instrumental craftsmanship and revive a beautiful Polish instrument the Harmonia. We invite you to take part in our crowdfunging campaign on We offer some great rewards in exchange for your support.
  • Hybrid 'bandoneon' is finished. More informations.
  • We are extending machine park in the connection with the EU project
  • We are working above the bass side reconstructed Polish Harmonia, look