This article investigates musical grit and sisu, inner fortitude, as predecessors of flow, flourishing and personal growth. Grit has been identified as an important factor for success. Our aim was to increase knowledge of the benefits of intensified music education for building grit, resilience and fortitude. Data were collected with mixed methods in 2020 from two schools and 96 children. Surveys were filled out by students in both music and regular classes. Qualitative data about music education experiences were collected through interviews and writing tasks from the music class students and interviews with their teachers. Music classes scored higher than regular classes in perseverance, certain dimensions of flow and musical flourishing. Musical flourishing correlated with playing years and had high correlation with self-efficacy, flow experiences and general well-being. The sequence of facing, but also beating, challenges as a group in musical performances and then feeling flow and flourishing seemed to be beneficial for children’s personal growth. Students in music classes learned not only musical skills, but also resilient and optimistic thinking related to their challenges. The theoretical model of Trust, Hope and Love was revised to display how sisu, the inner fortitude, advances flourishing.

中文翻译：

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芬兰音乐课程研究和课外演奏促进坚毅和西苏（内在的坚韧）：将西苏重新概念化为流动、成长和繁荣的前身

本文探讨了音乐勇气和内在毅力，它们是心流、蓬勃发展和个人成长的前身。毅力已被认为是成功的重要因素。我们的目标是让人们更多地了解强化音乐教育对于培养勇气、韧性和毅力的好处。 2020 年，我们采用混合方法从两所学校和 96 名儿童收集了数据。调查由音乐班和普通班的学生填写。关于音乐教育经历的定性数据是通过对音乐班学生的访谈和写作任务以及对他们的老师的访谈来收集的。音乐课在毅力、流畅性和音乐发展方面的得分高于普通课程。音乐繁荣与演奏年限相关，并与自我效能感、心流体验和总体幸福感高度相关。在音乐表演中，作为一个群体，面对挑战、战胜挑战，然后感受流动和蓬勃发展，这似乎有利于孩子们的个人成长。音乐课上的学生不仅学习音乐技能，还学习应对挑战的弹性和乐观思维。修改了“信任、希望和爱”的理论模型，以展示“内在的坚韧”如何走向繁荣。