Riddle of Ice

Don’t forget how you’ve been taught
Especially one two three,
You can remember math, can’t you?
Just don’t forget and follow me.

At least three of you people reading this know music,
Remember what consists and makes music be.
Like a clear rounding ring of different time signatures
Understand common time and the one less than that beat

A pattern, a twist, some lyrics or rests,
Each one paints a wondrous picture of sound.
Sometimes music morphs from easy red to darkening black
Nothing stays the same forever in music, it turns around

The lyrics are inventive, or they are not heard
A touch of light, a touch of dark
A truly ghostly sound crawls across your flesh
Other worldly lyrics shine like the songs of larks

Classic is not the only song now
The music is turned into Jazz and Rock
For those of you firstly listen to small but hard as metal
Leave truly in a startled shock

Just remember the different pictures music has
Once just brass and woodwind just making flowers
A meadow of emerald with violets
Every piece composed takes hours

Now you have her name and all
Description included for you to see
She is hiding, but you can find her
Actually, you know her name is -