The Internet of Musical Things (IoMusT) refers to the extension of the Internet of Things paradigm to the musical domain. Interoperability represents a central issue within this domain, where heterogeneous Musical Things serving radically different purposes are envisioned to communicate between each other. Automatic discovery of resources is also a desirable feature in IoMusT ecosystems. However, the existing musical protocols are not adequate to support discoverability and interoperability across the wide heterogeneity of Musical Things, as they are typically not flexible, lack high resolution, are not equipped with inference mechanisms that could exploit on board the information on the whole application environment. Besides, they hardly ever support easy integration with the Web. In addition, IoMusT applications are often characterized by strict requirements in terms of latency of the exchanged messages. Semantic Web of Things technologies have the potential to overcome the limitations of existing musical protocols by enabling discoverability and interoperability across heterogeneous Musical Things. In this paper we propose the Musical Semantic Event Processing Architecture (MUSEPA), a semantically-based architecture designed to meet the IoMusT requirements of low-latency communication, discoverability, interoperability, and automatic inference. The architecture is based on the CoAP protocol, a semantic publish/subscribe broker, and the adoption of shared ontologies for describing Musical Things and their interactions. The code implementing MUSEPA can be accessed at: https://github.com/CIMIL/MUSEPA/.

音乐物联网（IoMusT）是指将物联网范式扩展到音乐领域。互操作性代表了该领域的一个核心问题，在这个领域，异构音乐事物服务于完全不同的目的被设想在彼此之间进行通信。资源的自动发现也是 IoMusT 生态系统的一个理想特性。然而，现有的音乐协议不足以支持跨音乐事物的广泛异构性的可发现性和互操作性，因为它们通常不灵活，缺乏高分辨率，没有配备可以利用整个应用程序信息的推理机制环境。此外，它们几乎不支持与 Web 的轻松集成。此外，IoMusT 应用程序的特点通常是对交换消息的延迟有严格的要求。语义物联网技术有可能通过跨异构音乐事物的可发现性和互操作性来克服现有音乐协议的限制。在本文中，我们提出了音乐语义事件处理架构 (MUSEPA)，这是一种基于语义的架构，旨在满足 IoMusT 对低延迟通信、可发现性、互操作性和自动推理的要求。该架构基于 CoAP 协议、语义发布/订阅代理，并采用共享本体来描述音乐事物及其交互。实现 MUSEPA 的代码可以访问：https://github.com/CIMIL/MUSEPA/。