I hear this in most piano transcriptions and in all orchestras when I hear In the Hall of the Mountain King. It is as though Edvard Grieg wrote cresc. and accel. and pp and left it at that. I did hear once a piano transcription without that accelerando and it did not sound right to me. Of course, Edvard Grieg wrote all the dynamics but I still hear 1 smooth crescendo, even though in the sheet music there is no crescendo. Why is that? Why do I hear a crescendo and an accelerando if neither of these are written in the music?
I myself when I play this, try to play as quiet as possible in the first few measures. I also start at a bpm of 60. So I start at Larghetto. I end at Presto. It is like me going from Largo by Handel to Moonlight sonata 3rd movement in 2 minutes. That is how fast the tempo changes when I play it. But I see no signs of a tempo change. The only tempo I see is this:
Alla Marcia e Molto Marcato
Like a march with lots of accents is basically what that translates to. And then I see this:
sempre staccato e pp
In other words, every note is to be staccato, except where the slurs are. At super fast speeds though, I can't really achieve a true staccato. And staccato triplets at allegro is hard. If I even try to play staccato at Presto, I end up playing legato, even with the staccato technique because the notes are just so fast that the line between staccato and legato is blurred, Also staccato at those speeds causes me to be more tense than legato at those speeds. And I know this is because I build up tension and then release it with the staccato, more so if I am doing the staccato at forte.
But why is it that I hear a smooth accelerando and a smooth crescendo in that piece when neither one is written down?