movements or movement? As soon as he saw us, he picked up a long pipe which was covered with coins and opened one of the baskets. When he began to play a tune, we had our first glimpse of the snake. It rose out of the basket and began to follow the movements of the pipe. We were very much surprised when the snake charmer suddenly began to play jazz and modern pop songs. The snake, however, continued to 'dance' slowly. It obviously could not tell the difference between Indian music and jazz! 1.It rose out of the basket and began to follow the movements of the pipe.  why here don't use movement? 2.It obviously could not tell the difference between Indian music and jazz!  why here don't use differences? I always confuse the words which can be countable and uncountable. I don't know when the word should be countable or uncountable