The theory of Participatory Discrepancies (or PDs) claims that minute temporal asynchronies (microtiming) in music performance are crucial for prompting bodily entrainment in listeners, which is a fundamental effect of the “groove” experience. Previous research has failed to find evidence to support this theory. The present study tested the influence of varying PD magnitudes on the beat-related body movement behavior of music listeners. 160 participants (79 music experts, 81 non-experts) listened to twelve music clips in either Funk or Swing style. (...) These stimuli were based on two audio recordings (one in each style) of expert drum and bass duo performances. In one series of six clips, the PDs were downscaled from their originally performed magnitude to complete quantization in steps of 20%. In another series of six clips, the PDs were upscaled from their original magnitude to double magnitude in steps of 20%. The intensity of the listeners’ beat-related head movement was measured using video-based motion capture technology and Fourier analysis. A mixed-design four-factor ANOVA showed that the PD manipulations had a significant effect on the expert listeners’ entrainment behavior. The experts moved more when listening to stimuli with PDs that were downscaled by 60% compared to completely quantized stimuli. This finding offers partial support for PD theory: PDs of a certain magnitude do augment entrainment in listeners. But the effect was found to be small to moderately sized, and it affected music expert listeners only. (shrink)

Living in Anthropocene times entails living in relation to two seemingly separate temporalities – the microtime of digital operations and the deep time of geological upheaval. Though divergent, these temporalities are united by their unavailability to perception; microtime proceeds too fast to perceive directly, while deep time is too vast to apprehend. Taking these temporalities as a point of departure, this paper develops three arguments. First, it asserts that the temporalities of deep time and microtime increasingly impact (...) contemporary existence, complicating familiar categorizations of temporal experience. Second, it argues that these ostensibly separate temporalities are ontologically connected through the operations of the tech industry, which is constructing a microtemporal system that extracts the planet’s deep time resources to delimit the future both materially and cognitively. Third, it suggests that Silicon Valley legitimizes these processes by funding the philosophy of longtermism, which appeals to distant timescales to marginalize injustices in the present. (shrink)