立式琴和三角琴的差别

今天老师再次问家里是立式琴还是三角琴。因为下面的练习曲，对家里是立式琴的孩子非常不利。这是轮指练习，断奏，要求均匀，良好颗粒感，速度要快。有些孩子急哭了也达不到老师的要求。老师为了不让孩子跟琴较劲，都事先问清家里什么琴，再提要求。

曾经有一次老师只提要求，那孩子回家怎么练也不行。回课时，在老师的琴上马上就变得特别轻松无比。结果是那孩子家里是立式琴。

 

立式琴和三角琴的区别就像飞机螺旋桨和喷气式的区别。
 

  

三角琴单键复击典型值每秒14次，立式琴每秒7次。这是击弦机结构不同造成的差别。轮指时立式琴不给力。


这是普通立式钢琴击弦机，典型速度上限是每秒七次







这是普通三角钢琴击弦机，典型速度上限是每秒14次

 

立式琴键必须充分复位才能做下次动作，而三角琴键只需半复位

 

16分音符轮指（复击同一音符）：当速度标为Allegro，快板每分钟120个四分音符也就是每分钟480个十六分音符，每秒8次，立式琴就吃不消了；当速度标为Presto，急板每分钟200个四分音符也就是每分钟800个十六分音符，每秒13.3次，三角琴仍然游刃有余。

音乐速度表：

Quarter notes per minute, from slowest to fastest:
Larghissimo – very, very slow (24 BPM and under)
Grave – very slow (25–45 BPM)
Lento – slowly (45–50 BPM)
Largo – broadly (50–55 BPM)
Larghetto – rather broadly (55–60 BPM)
Adagio – slow and stately (literally, "at ease") (60–72 BPM)
Adagietto – slower than andante (72–80 BPM)
Andantino – slightly slower than andante (although in some cases it can be taken to mean slightly faster than andante) (80–84 BPM)
Andante – at a walking pace (84–90 BPM)
Andante moderato – between andante and moderato (thus the name andante moderato) (90–96 BPM)
Marcia moderato – moderately, in the manner of a march[4][5] (83–85 BPM)
Moderato – moderately (96–108 BPM)
Allegro Moderato - moderately fast (108-112 BPM)
Allegretto – close to but not quite allegro (112–120 BPM)
Allegro – fast, quickly, and bright (120–128 BPM) (molto allegro is slightly faster than allegro, but always in its range)
Vivace – lively and fast (132–144 BPM)
Vivacissimo – very fast and lively (144–160 BPM)
Allegrissimo (or Allegro Vivace) – very fast (145–167 BPM)
Presto – extremely fast (168–200 BPM)
Prestissimo – even faster than Presto (200 BPM and over)