  Music listening in today's digital spaces is highly characterized by the
availability of huge music catalogues, accessible by people all over the world.
In this scenario, recommender systems are designed to guide listeners in
finding tracks and artists that best fit their requests, having therefore the
power to influence the diversity of the music they listen to. Albeit several
works have proposed new techniques for developing diversity-aware
recommendations, little is known about how people perceive diversity while
interacting with music recommendations. In this study, we interview several
listeners about the role that diversity plays in their listening experience,
trying to get a better understanding of how they interact with music
recommendations. We recruit the listeners among the participants of a previous
quantitative study, where they were confronted with the notion of diversity
when asked to identify, from a series of electronic music lists, the most
diverse ones according to their beliefs. As a follow-up, in this qualitative
study we carry out semi-structured interviews to understand how listeners may
assess the diversity of a music list and to investigate their experiences with
music recommendation diversity. We report here our main findings on 1) what can
influence the diversity assessment of tracks and artists' music lists, and 2)
which factors can characterize listeners' interaction with music recommendation
diversity.
