What Blockchain is audio on?

Excuse me, could you clarify your question? It seems a bit unusual to ask about Blockchain being "audio on" something. Blockchain, as a technology, is primarily associated with decentralized, distributed ledger systems that record transactions in a secure and verifiable manner. It's typically not directly related to audio content. However, if you're referring to blockchain-based audio platforms or projects that utilize blockchain technology in some way for audio content, there are indeed a few examples. For instance, some platforms are exploring ways to use blockchain to securely store and distribute audio content, such as music or podcasts, ensuring authenticity, transparency, and potentially even providing new monetization models for creators. But to answer your question directly, Blockchain itself is not "audio on" anything; it's a technology that can be applied to various use cases, including audio-related ones. Could you perhaps provide more context or clarify your inquiry?