Quantum computing is emerging as a promising technology, which is built on the principles of subatomic physics. By the time of writing, fully fledged practical quantum computers are not widely available. But research and development are advancing rapidly. Various software simulators are already available. And a few companies have already started to provide access to quantum hardware via the cloud. These initiatives have enabled experiments with quantum computing to tackle some realistic problems in science; e.g., in chemistry and cryptography. In spite of continuing progress in developing increasingly more sophisticated hardware and software, research in quantum computing has been focusing primarily on developing scientific applications. Up till now there has been virtually no research activity aimed at widening the range of applications of this technology beyond science and engineering. In particular applications for the entertainment industry and creative economies. This article introduces a new field of research, which is referred to as Quantum Computer Music. This research is aimed at the development of quantum computing tools and approaches to creating, performing, listening to and distributing music. The article begins with a brief historical background. Then, it introduces the notion of algorithmic music and presents two quantum computer music systems: a singing voice synthesiser and a musical sequencer based on quantum walk. A primer on quantum computing is also given. The chapter ends with a concluding discussion and advice for further work to develop this new exciting area of research.

中文翻译：

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量子计算机：你好，音乐！

量子计算正在成为一种很有前途的技术，它建立在亚原子物理学的原理之上。在撰写本文时，成熟的实用量子计算机尚未广泛使用。但是研究和开发正在迅速推进。各种软件模拟器已经可用。一些公司已经开始通过云提供对量子硬件的访问。这些举措使量子计算实验能够解决科学中的一些现实问题；例如，在化学和密码学中。尽管在开发越来越复杂的硬件和软件方面不断取得进展，但量子计算的研究主要集中在开发科学应用上。到目前为止，几乎没有任何研究活动旨在扩大该技术在科学和工程之外的应用范围。特别适用于娱乐业和创意经济。本文介绍了一个新的研究领域，即量子计算机音乐。这项研究旨在开发量子计算工具以及创建、表演、聆听和分发音乐的方法。文章从简要的历史背景开始。然后，介绍了算法音乐的概念，并提出了两个量子计算机音乐系统：歌声合成器和基于量子行走的音乐音序器。还提供了量子计算入门。