The original paper on Mixed Sessions introduce the side A of the tape: there is an encoding of classical sessions into mixed sessions. Here we present side B: there is a translation of (a subset of) mixed sessions into classical session types. We prove that the translation is a minimal encoding, according to the criteria put forward by Kouzapas, P\'erez, and Yoshida.

中文翻译：

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混合会议：磁带的另一面

Mixed Sessions 的原始论文介绍了磁带的 A 面：将经典会话编码为混合会话。在这里，我们呈现 B 面：将（一部分）混合会话转换为经典会话类型。根据 Kouzapas、P\'erez 和 Yoshida 提出的标准，我们证明翻译是一种最小编码。