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The speech-to-song illusion is a perceptual transformation in which a spoken phrase initially heard as speech begins to sound like song across repetitions. In two experiments, we tested whether phrase-specific learning and memory processes engaged by repetition contribute to the illusion. In Experiment 1, participants heard 16 phrases across two conditions. In both conditions, participants heard eight repetitions of each phrase and rated their experience after each repetition using a 10-point scale from “sounds like speech” to “sounds like song.” The conditions differed in whether the repetitions were heard consecutively or interleaved such that participants were exposed to other phrases between each repetition. The illusion was strongest when exposures to phrases happened consecutively, but phrases were still rated as more song-like after interleaved exposures. In Experiment 2, participants heard eight consecutive repetitions of each of eight phrases. Seven days later, participants were exposed to eight consecutive repetitions of the eight phrases heard previously as well as eight novel phrases. The illusion was preserved across a delay of one week: familiar phrases were rated as more song-like in session two than novel phrases. The results provide evidence for the role of rapid phrase-specific learning and long-term memory in the speech-to-song illusion. 

Human imagination is generative and creative yet deeply rooted in culture and familiarity. Recent studies have quantified the effects of culture on stories that are imagined during music listening, but the music used in previous work was always drawn from a tradition familiar to participants from at least one of the cultures. Here we report the first study of imagined stories to music written in a musical system that is novel to participants from each culture, thus allowing for a direct comparison of narratives prompted by the same set of excerpts that is comparably unfamiliar to both groups. Music composed in the Bohlen–Pierce scale was presented to participants from two geographically defined cultures: Boston, United States and Beijing, China. We also examined how individual differences, such as in musicality and sensitivity to musical reward, might affect narrative engagement and semantic content of the imagined stories as measured by tools from natural language processing. Results showed that semantic spaces of music-evoked imaginings differed between Boston and Beijing cohorts. While both cultures were similarly engaged by the story response task, differences emerged in the semantic content of the imagined stories. Boston participants who reported being more absorbed by music wrote more unconventional stories, whereas Beijing participants who reported more emotional responses to music wrote more conventional stories. These results reveal the roles of culture and individual differences in modes of narrative engagement and imagination during music listening. (PsycInfo Database Record (c) 2023 APA, all rights reserved) 

The scientific literature sometimes considers music an abstract stimulus, devoid of explicit meaning, and at other times considers it a universal language. Here, individuals in three geographically distinct locations spanning two cultures performed a highly unconstrained task: they provided free-response descriptions of stories they imagined while listening to instrumental music. Tools from natural language processing revealed that listeners provide highly similar stories to the same musical excerpts when they share an underlying culture, but when they do not, the generated stories show limited overlap. These results paint a more complex picture of music’s power: music can generate remarkably similar stories in listeners’ minds, but the degree to which these imagined narratives are shared depends on the degree to which culture is shared across listeners. Thus, music is neither an abstract stimulus nor a universal language but has semantic affordances shaped by culture, requiring more sustained attention from psychology.