Interpersonal musical entrainment—temporal synchronization and coordination between individuals in musical contexts—is a ubiquitous phenomenon related to music’s social functions of promoting group bonding and cohesion. Mechanisms other than sensorimotor synchronization are rarely discussed, while little is known about cultural variability or about how and why entrainment has social effects. In order to close these gaps, we propose a new model that distinguishes between different components of interpersonal entrainment: sensorimotor synchronization —a largely automatic process manifested especially with rhythms based on periodicities in the 100–2000 ms timescale—and coordination , extending over longer timescales and more accessible to conscious control. We review the state of the art in measuring these processes, mostly from the perspective of action production, and in so doing present the first cross-cultural comparisons between interpersonal entrainment in natural musical performances, with an exploratory analysis that identifies factors that may influence interpersonal synchronization in music. Building on this analysis we advance hypotheses regarding the relationship of these features to neurophysiological, social, and cultural processes. We propose a model encompassing both synchronization and coordination processes and the relationship between them, the role of culturally shared knowledge, and of connections between entrainment and social processes.

Many foundational questions in the psychology of music require cross-cultural approaches, yet the vast majority of work in the field to date has been conducted with Western participants and Western music. For cross-cultural research to thrive, it will require collaboration between people from different disciplinary backgrounds, as well as strategies for overcoming differences in assumptions, methods, and terminology. This position paper surveys the current state of the field and offers a number of concrete recommendations focused on issues involving ethics, empirical methods, and definitions of “music” and “culture.”

THE STUDY OF MUSICAL EMOTIONS IS A CHALLENGE for psychology and neuroscience, but the ethnomusicological account is often excluded from the debate. The present article focuses on types of performances that differ from the model of Western classical music: weddings and funerals in a Gypsy community of Transylvania. Analysis of musical activity and expression of emotions in these contexts showed that aesthetic meanings are transformed when music is embedded in social action: the same tunes are played while people dance at weddings and while they cry at funerals. The major anthropological hypothesis suggested by this study is that music acts in rituals as a means for establishing and reinforcing the emotional experiences of different kinds of relationships. The hypotheses and data are discussed in light of recent psychological research on musical emotion.

It is argued that approaches to music that employ evolutionary theory must seek to define ‘music’ as explicitly as possible. Without such a definition, the relationships between music and other domains of human and animal behavior must remain underspecified, limiting the generality of any claims that can be made concerning its evolutionary roots.