This study investigates the impact of micro-interactions on user satisfaction within music applications, specifically examining the usability differences between simpler and more complex interactions. The research employs semi-structured interviews to assess user satisfaction with two different levels of micro-interaction complexity. The goal is to derive actionable insights for optimising user-centred design in digital music streaming platforms, ultimately enhancing user satisfaction.

The semi-structured interview method is chosen for this study, with the assistance of A/B testing designed by the researchers to gain realistic and informative qualitative data. To analyse a large amount of qualitative data, thematic analysis is utilised as the analytic method.

The results reveal a clear preference for simple micro-interactions. Participants found these interactions required fewer steps, were more intuitive, and demanded minimal cognitive effort, thereby avoiding information and feature overload. In contrast, complex micro-interactions often led to confusion and frustration due to unnecessary complexity and unclear iconography. Moreover, participants expressed a need for personalised and voice-activated interactions to enhance usability and accessibility in diverse contexts.

These findings underscore the importance of designing micro-interactions that align with users' mental models and preferences. By prioritising simplicity, intuitiveness, and personalization, music streaming services can significantly improve user satisfaction and engagement.