舒伯特的两套钢琴即兴曲是其晚期作品中的明珠。作品90第一首《c小调即兴曲》以一个强奏的持续音开场。强奏自有其重，但舒伯特的音乐从来不会止于重。他会在触底之后反弹，将音乐朝反重力的方向拉起，以同等的力道发出向上的气息。这样的拉扯，在他的晚期作品中并不罕见。
She oversees the clinical research team at Aura, an online safety solution for individuals and families to protect their identities—and that of their children’s—in an increasingly digital landscape. The company uses AI to monitor families’ online activities and can even recognize keyboard inputs to denote if a child is using a harmful language or platform.。夫子对此有专业解读
Anglo-Saxon spindle whorl，更多细节参见safew官方下载
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