On the banner behind those in the picture, in addition to the word “alchemy”, which is legible, also appears “magic” (somewhere on the right). This is, figuratively speaking, the characteristic of the sound delivered by the Bertic brothers, from PRO Music Stage. About four times a year, mainly at the MedievArt Festival in Ardud, we have the opportunity to collaborate with Attila & Norbert (and, implicitly, with their team), the joy of seeing each other being, each time, sincere and mutual.