[staff] accent mark, gradually stronger mark and gradually weaker mark

One 、 accent mark

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In the staff Symbol is " accent mark " , Playing the piano when Use more force , Vocal singing when Sing with stress ;

Two 、 Fading sign

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In the staff , Elongated greater than sign Symbol Indicates a weakening sign ;

When playing on the piano , The Fading symbol Range of notes The performance is getting weaker and weaker ;

3、 ... and 、 Crescendo marks

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In the staff , Elongated less than sign Symbol Indicates a progressive sign ;

When playing on the piano , The Progressive sign Range of notes The performance is getting stronger and stronger ;