The rapid advancement of generative AI (GenAI) is expanding access to songwriting, offering a new medium of self-expression for Deaf and Hard-of-Hearing (DHH) individuals. However, emerging technologies that support DHH individuals in expressing themselves through music have largely been evaluated in single-session settings and often fall short in helping users unfamiliar with songwriting convey personal narratives or sustain engagement over time. This paper explores songwriting as an extended, music-based journaling practice that supports sustained emotional reflection over multiple sessions. We introduce SoulNote, a GenAI system enabling DHH to engage in iterative songwriting. Grounded in user-centered design, including a design workshop, a preliminary study, and a multi-session diary study, our findings show that ongoing songwriting with \textit{SoulNote} facilitated emotional growth across three dimensions: self-insight, emotion regulation, and \revised{everyday attitudes toward emotions and self-care}. Overall, this work demonstrates how GenAI can support marginalized communities by transforming creative expression into a daily practice of self-discovery and reflection.

翻译：生成式人工智能（GenAI）的快速发展正在拓宽歌曲创作的参与途径，为听障人士提供了一种新的自我表达媒介。然而，支持听障人士通过音乐表达自我的新兴技术，其评估大多局限于单次会话场景，且往往难以帮助不熟悉歌曲创作的用户传达个人叙事或维持长期参与。本文探讨了将歌曲创作作为一种扩展性的、基于音乐的日志实践，以支持跨多个会话的持续性情感反思。我们介绍了SoulNote，一个使听障人士能够进行迭代式歌曲创作的GenAI系统。基于以用户为中心的设计（包括设计研讨会、初步研究和多会话日记研究），我们的研究结果表明，使用 \textit{SoulNote} 进行持续的歌曲创作促进了情感成长，体现在三个维度：自我洞察、情绪调节以及\revised{对情绪和自我关怀的日常态度}。总体而言，这项工作展示了GenAI如何通过将创造性表达转变为日常的自我发现与反思实践，从而支持边缘化群体。