Andre Holzapfel
Biographic Data
| ID | 1752360 |
|---|---|
| NAME | Andre Holzapfel |
| GIVEN NAMES | Andre |
| FAMILY NAME | Holzapfel |
| SIGNATURE | HOLZAPFEL A |
| AFFILIATIONS | KTH Royal Institute of Technology |
| ORCID | 0000-0003-1679-6018 |
| VERIFIED | Yes |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 3 |
| AUTHOR COUNT | 10 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2013 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Revising research practices for singing data collection
As AI voice synthesis enables increasingly sophisticated vocal deepfakes and non-consensual voice cloning, the governance, licensing and access of singing datasets has become an urgent concern for data-contributors, who face significant harms from downstream and non-consensual usage of their singing data. Singing datasets are foundational to the development of high fidelity voice AI synthesis, yet current data collection practices pose challenges…
The Abelian axioms—A framework for analyzing interaction and improvisation in a jazz group
In this study, we asked four professional jazz musicians to rehearse, record, and analyze their performances. The musicians used five short pieces, composed for the study using techniques informed by pitch-class theory and inspired by discrete mathematics, as a departing point for group improvisations. The improvisations were transcribed, and the transcriptions and recordings were used during interviews to stimulate the participants’ recollection…
Imploding between the facts and concerns
The advancement of AI-tools for musical performance has inspired exciting opportunities for interaction with musical-AI-agents. Interactions between humans and AI-agents in musical settings entail dynamic exchanges of control and power, and framings of AI-agents’ roles by human performers. We probe these framings and power-control exchanges through qualitative thematic lenses, drawing from post-phenomenology, matters of fact and concern and femin…
Commonality and variation in mental representations of music revealed by a cross-cultural comparison of rhythm priors in 15 countries
Music is present in every known society but varies from place to place. What, if anything, is universal to music cognition? We measured a signature of mental representations of rhythm in 39 participant groups in 15 countries, spanning urban societies and Indigenous populations. Listeners reproduced random ‘seed’ rhythms; their reproductions were fed back as the stimulus (as in the game of ‘telephone’), such that their biases (the prior) could be …
Relations between perceived affect and liking for melodies and visual designs
Sensory valuation is a fundamental aspect of cognition. It involves assigning hedonic value to a stimulus based on its sensory information considering personal and contextual factors. Hedonic values (e.g., liking) can be deemed affective states that motivate behavior, but the relations between hedonic and affective judgments have yet to be established. To fill this gap, we investigated the relations between stimulus features, perceived affect, an…
Relation Between Surface Rhythm and Rhythmic Modes in Turkish Makam Music
Sounds in a piece of music form rhythmic patterns on the surface of a music signal, and in a metered piece these patterns stand in some relation to the underlying rhythmic mode or meter. In this paper, we investigate how the surface rhythm is related to the usul, which are the rhythmic modes in compositions of Turkish makam music. On a large corpus of notations of vocal pieces in short usul we observe the ways notes are distributed in relation to…
Computational Analysis of Turkish Makam Music
This text targets a review of the computational analysis literature for Turkish makam music, discussing in detail the challenges involved and presenting a perspective for further studies. For that purpose, the basic concepts of Turkish makam music and the description of melodic, rhythmic and timbral aspects are considered in detail. Studies on tuning analysis, automatic transcription, automatic melodic analysis, automatic makam and usul detection…
Linking Scores and Audio Recordings in Makam Music of Turkey
The most relevant representations of music are notations and audio recordings, each of which emphasizes a particular perspective and promotes different approximations in the analysis and understanding of music. Linking these two representations and analysing them jointly should help to better study many musical facets by being able to combine complementary analysis methodologies. In order to develop accurate linking methods, we have to take into …
In Search of Automatic Rhythm Analysis Methods for Turkish and Indian Art Music
The aim of this paper is to identify and discuss various methods in computational rhythm description of Carnatic and Hindustani music of India, and Makam music of Turkey. We define and describe three relevant rhythm annotation tasks for these cultures—beat tracking, meter estimation, and downbeat detection. We then evaluate several methodologies from the state of the art in Music Information Retrieval (MIR) for these tasks, using manually annotat…
Evaluation and Recommendation of Pulse and Tempo Annotation in Ethnic Music
Large digital archives of ethnic music require automatic tools to provide musical content descriptions. While various automatic approaches are available, they are to a wide extent developed for Western popular music. This paper aims to analyse how automated tempo estimation approaches perform in the context of Central-African music. To this end we collect human beat annotations for a set of musical fragments, and compare them with automatic beat …
Commonality and variation in mental representations of music revealed by a cross-cultural comparison of rhythm priors in 15 countries
Music is present in every known society but varies from place to place. What, if anything, is universal to music cognition? We measured a signature of mental representations of rhythm in 39 participant groups in 15 countries, spanning urban societies and Indigenous populations. Listeners reproduced random ‘seed’ rhythms; their reproductions were fed back as the stimulus (as in the game of ‘telephone’), such that their biases (the prior) could be …
Relation Between Surface Rhythm and Rhythmic Modes in Turkish Makam Music
Sounds in a piece of music form rhythmic patterns on the surface of a music signal, and in a metered piece these patterns stand in some relation to the underlying rhythmic mode or meter. In this paper, we investigate how the surface rhythm is related to the usul, which are the rhythmic modes in compositions of Turkish makam music. On a large corpus of notations of vocal pieces in short usul we observe the ways notes are distributed in relation to…
Linking Scores and Audio Recordings in Makam Music of Turkey
The most relevant representations of music are notations and audio recordings, each of which emphasizes a particular perspective and promotes different approximations in the analysis and understanding of music. Linking these two representations and analysing them jointly should help to better study many musical facets by being able to combine complementary analysis methodologies. In order to develop accurate linking methods, we have to take into …
Evaluation and Recommendation of Pulse and Tempo Annotation in Ethnic Music
Large digital archives of ethnic music require automatic tools to provide musical content descriptions. While various automatic approaches are available, they are to a wide extent developed for Western popular music. This paper aims to analyse how automated tempo estimation approaches perform in the context of Central-African music. To this end we collect human beat annotations for a set of musical fragments, and compare them with automatic beat …
Computational Analysis of Turkish Makam Music
This text targets a review of the computational analysis literature for Turkish makam music, discussing in detail the challenges involved and presenting a perspective for further studies. For that purpose, the basic concepts of Turkish makam music and the description of melodic, rhythmic and timbral aspects are considered in detail. Studies on tuning analysis, automatic transcription, automatic melodic analysis, automatic makam and usul detection…
Linking Scores and Audio Recordings in Makam Music of Turkey
The most relevant representations of music are notations and audio recordings, each of which emphasizes a particular perspective and promotes different approximations in the analysis and understanding of music. Linking these two representations and analysing them jointly should help to better study many musical facets by being able to combine complementary analysis methodologies. In order to develop accurate linking methods, we have to take into …
In Search of Automatic Rhythm Analysis Methods for Turkish and Indian Art Music
The aim of this paper is to identify and discuss various methods in computational rhythm description of Carnatic and Hindustani music of India, and Makam music of Turkey. We define and describe three relevant rhythm annotation tasks for these cultures—beat tracking, meter estimation, and downbeat detection. We then evaluate several methodologies from the state of the art in Music Information Retrieval (MIR) for these tasks, using manually annotat…
Relation Between Surface Rhythm and Rhythmic Modes in Turkish Makam Music
Sounds in a piece of music form rhythmic patterns on the surface of a music signal, and in a metered piece these patterns stand in some relation to the underlying rhythmic mode or meter. In this paper, we investigate how the surface rhythm is related to the usul, which are the rhythmic modes in compositions of Turkish makam music. On a large corpus of notations of vocal pieces in short usul we observe the ways notes are distributed in relation to…
Relations between perceived affect and liking for melodies and visual designs
Sensory valuation is a fundamental aspect of cognition. It involves assigning hedonic value to a stimulus based on its sensory information considering personal and contextual factors. Hedonic values (e.g., liking) can be deemed affective states that motivate behavior, but the relations between hedonic and affective judgments have yet to be established. To fill this gap, we investigated the relations between stimulus features, perceived affect, an…
Commonality and variation in mental representations of music revealed by a cross-cultural comparison of rhythm priors in 15 countries
Music is present in every known society but varies from place to place. What, if anything, is universal to music cognition? We measured a signature of mental representations of rhythm in 39 participant groups in 15 countries, spanning urban societies and Indigenous populations. Listeners reproduced random ‘seed’ rhythms; their reproductions were fed back as the stimulus (as in the game of ‘telephone’), such that their biases (the prior) could be …
Imploding between the facts and concerns
The advancement of AI-tools for musical performance has inspired exciting opportunities for interaction with musical-AI-agents. Interactions between humans and AI-agents in musical settings entail dynamic exchanges of control and power, and framings of AI-agents’ roles by human performers. We probe these framings and power-control exchanges through qualitative thematic lenses, drawing from post-phenomenology, matters of fact and concern and femin…
Revising research practices for singing data collection
As AI voice synthesis enables increasingly sophisticated vocal deepfakes and non-consensual voice cloning, the governance, licensing and access of singing datasets has become an urgent concern for data-contributors, who face significant harms from downstream and non-consensual usage of their singing data. Singing datasets are foundational to the development of high fidelity voice AI synthesis, yet current data collection practices pose challenges…
The Abelian axioms—A framework for analyzing interaction and improvisation in a jazz group
In this study, we asked four professional jazz musicians to rehearse, record, and analyze their performances. The musicians used five short pieces, composed for the study using techniques informed by pitch-class theory and inspired by discrete mathematics, as a departing point for group improvisations. The improvisations were transcribed, and the transcriptions and recordings were used during interviews to stimulate the participants’ recollection…
Music Technology and Sound Studies (7 works) · Musical (7 works) · Neuroscience and Music Perception (7 works) · Music and Audio Processing (6 works) · Visual arts (6 works) · Art (5 works) · Computer Science (5 works) · Artificial Intelligence (4 works) · Linguistics (4 works) · Music Information Retrieval (4 works)