english: There's a scale paradigm, which is playing a scale up and down, memorized, then there's improvising on a scale, quarter notes, metronome, right hand -- scientifically very safe, but musically really boring.
non_english: Stupnicová paradigma, hrá sa na stupnici hore a dole, popamäti. A tu je improvizácia na stupnici štvrťové noty, metronóm, pravá ruka, vedecky veľmi bezpečné ale hudobne podstatne nudné.