电子琴二凤凰 <p class="ql-block">献给爱丽丝</p> <p class="ql-block">C大调音阶</p> <p class="ql-block">G大调音阶</p> <p class="ql-block">D大调音阶</p> <p class="ql-block">A大调音阶</p>