High Note 是高调吗？

今天的新闻说GM的总裁Edward Whitacre Jr. 宣布将于月底离职，本来已经退休的Whitacre去年进入面临破产的GM，一年间令其转亏为盈，他说现在是时候离开了，因为 “it was my public duty to restore this company to greatness and I didn't want to stay a day beyond that." 报上用的句子是 “Whitacre will be leaving on a high note." High note 这里是指 “高调” 吗？“leave/exit on a high note" 是什么意思？ to leave/exit on a high note 就是功成身退，high note 在这里指事业的高峰。