推荐回答（5个）
sf指的是突强，全称为Sforzando，意思在音乐力度中突然强起来。
音乐力度指的是音的强弱程度。而不是音响的强度。力度标记通常采用意大利语的音乐术语。作曲家在乐谱上标有详细的力度标记，从最弱的到最强，通常可分为十几个层次，每一个层次的力度都是一个相对值。
sf属于音乐术语中的力度术语，演奏中力度的控制，要同音乐的内容统一起来，心中有情，自己有所感动，才能发现最美的声音，才能通过力度的变化来表现演奏者对作品的艺术理解和体验。
扩展资料
相关术语：
一、mp（mezzo-Piano）：中弱
二、mf（ mezzo-forte）： 中强
三、f（forte）：强
四、ff（fortssimo）：很强
五、riten：(Ritenuto)：突慢
钢琴演奏中，力度和表现力是息息相关的。高涨的情绪需要渐强(Cresc?)的乐句来表现，缓和、平静下来的情绪则需要音乐逐渐减弱。
在演奏中，力度对声部处理方面更是意义重大，主调音乐往往有旋律，中声部和低音等几部分。如果旋律用mf，则伴奏声部用p来衬托主旋律；如伴奏声部用mf，则旋律声部要用f。应做到旋律线条突出，中声部安静丰满，低音扎实，清晰而有弹性。
参考资料来源：百度百科-音乐术语
强音的意思。你可以买一本《音乐表情术语字典》，很薄的，人民音乐出版社的，我买时定价3.5元，在琴行或新华书店有买。如是学钢琴，那是必不可少的。
另，sf比ff要来得突然，可以说是突强，老师说的。sf和 zf 都是极强突强的意思,这时候要求肩膀的力量放下来,落到手指
sf指的是突强，全称为Sforzando，意思在音乐力度中突然强起来。
音乐力度指的是音的强弱程度。而不是音响的强度。力度标记通常采用意大利语的音乐术语。作曲家在乐谱上标有详细的力度标记，从最弱的到最强，通常可分为十几个层次，每一个层次的力度都是一个相对值。
sf属于音乐术语中的力度术语，演奏中力度的控制，要同音乐的内容统一起来，心中有情，自己有所感动，才能发现最美的声音，才能通过力度的变化来表现演奏者对作品的艺术理解和体验。
意思是，比强音（f）还要强的音“sf”“zf”都可以表示
sf是突强的意思。
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