Eurhythmic/Arrhythmic*
adj. Eurhythmic is simply ‘with good flow’ whereas Arrhythmic is an absence of good flow.
Users find it hard to engage deeply with artefacts where there is no growth no change, no narrative and only predictability. However change alone alienates users through a lack of coherence. Therefore, a smooth and seamless shift must be present in order to evoke sensations of mutual growth. (Chapman, 2015, p. 76 emphasis added)
*Attributed to Jaques-Dalcroze (1921; 1920).