[2309.12254] Variational Quantum Harmonizer: Generating Chord Progressions and Other Sonification Methods with the VQE Algorithm
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Computer Science > Emerging Technologies

arXiv:2309.12254 (cs)
[Submitted on 21 Sep 2023]

Title:Variational Quantum Harmonizer: Generating Chord Progressions and Other Sonification Methods with the VQE Algorithm

Authors:Paulo Vitor Itaboraí, Tim Schwägerl, María Aguado Yáñez, Arianna Crippa, Karl Jansen, Eduardo Reck Miranda, Peter Thomas
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Abstract:This work investigates a case study of using physical-based sonification of Quadratic Unconstrained Binary Optimization (QUBO) problems, optimized by the Variational Quantum Eigensolver (VQE) algorithm. The VQE approximates the solution of the problem by using an iterative loop between the quantum computer and a classical optimization routine. This work explores the intermediary statevectors found in each VQE iteration as the means of sonifying the optimization process itself. The implementation was realised in the form of a musical interface prototype named Variational Quantum Harmonizer (VQH), providing potential design strategies for musical applications, focusing on chords, chord progressions, and arpeggios. The VQH can be used both to enhance data visualization or to create artistic pieces. The methodology is also relevant in terms of how an artist would gain intuition towards achieving a desired musical sound by carefully designing QUBO cost functions. Flexible mapping strategies could supply a broad portfolio of sounds for QUBO and quantum-inspired musical compositions, as demonstrated in a case study composition, "Dependent Origination" by Peter Thomas and Paulo Itaborai.
Comments: Manuscript Accepted to the 2nd International Symposium on Quantum Computing and Musical Creativity (ISQCMC Berlin). Link: this https URL
Subjects: Emerging Technologies (cs.ET); Human-Computer Interaction (cs.HC); Sound (cs.SD); Audio and Speech Processing (eess.AS); Quantum Physics (quant-ph)
Cite as: arXiv:2309.12254 [cs.ET]
  (or arXiv:2309.12254v1 [cs.ET] for this version)
  https://doi.org/10.48550/arXiv.2309.12254
Related DOI: https://doi.org/10.5281/zenodo.10206731

Submission history

From: Paulo Vitor Itaborai [view email]
[v1] Thu, 21 Sep 2023 16:58:35 UTC (9,147 KB)
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