Do you 识别 the sounds?

It's a pool table

What was the drum-roll 声波 being used for?

Notice how the 作品 is 不 just 錄/录 of playing a game of pool from start to finish

The 作曲家 is using the different 声 of playing pool to 创作 'gestures'

The 声 are still 识别 as pool playing 声 but are being 'abstracted' and 're-organised' to 创作 interesting new 声 and combinations

Notice how the 声 增 in 强度 towards a climax

The 作曲家 has used a 混响 效果（效应） to 创作 a clear ending to this section

This new section has a very different feel about it

The 声 have become less intense and quieter which changes the pace 动态 and the 整体 'feel' of the piece

听 where the 作曲家 has 加 a 延迟 效果（效应） 回声 to the coin slot sounds?

The pace is even slower now

Punctuated with sudden gestures

Another sudden 姿态 breaks through with a long 延迟 effect

What does the 临场 of voices suggest to you?

Slowly the 作品 comes to an end