Accordina A04 was premiered in 2004, as the name suggests. It succeeded the 2000 series which was a true copy of the Borel model, but with a synthetic material base and neoprene gaskets to avoid problems linked to condensation.
The A04 accordina has taken many parts from its predecessor including stainless steel reeds, axes and knobs. The reeds are glued to a bed of beeswax. They are perfectly blocked over the entire surface of the frame without constraint linked to tightening by screws. Contact with the base is better, which is what gives the A04 this special sound.
The bed base is made of synthetic material, I chose it for its compactness, its regularity of manufacture, and above all because the sound it generates is, of all the materials tested, the one that I preferred.