Tempo

Changing Tempo

Changing the speed of a song can be easier than the programming strategies employed in The Cat's Meow. A variable called tempo helps tremendously by changing how long one beat is.

Variable Blocks Program

In the Sounds tab, find and select the check box next to tempo so that you can see the value of the variable tempo at any given moment on the stage. The tempo and change / set tempo blocks provide three main ways to increase the tempo of a song.

  1. Initialize the value of tempo.
  2. Inside the repeat:
    • Use the value of tempo.
    • Change the value of tempo.

Try It Out!

Experiment with these codes to learn more.

  1. Create a new program in Scratch.
  2. Copy the script directly above.
  3. Make another version where the tempo increases quickly.
  4. Make another version where the tempo increases slowly.
  5. Make another version where the tempo starts out fast and then decreases.
  6. Make another version where the tempo starts out slow, then gets fast, then gets slow again. NOTE: You should make all five scripts within one Scratch program.
  7. Personalize it in at least three other ways.

When you are satisfied with your work, submit a link to your program or the program itself.