Virtually all types of music forms are being written today. Technology continues to play an important role in the development of 21st century music. Composers use recording tapes as a compositional tool. Electronically generated sounds are used both on their own and in combination with traditional instruments. Some are manipulating the performance of instruments in real time.
For a composition to be effective it must contain two of music’s basic elements – tone color and dynamics. They contribute to the feeling of motion and movement in music. Musical instruments provide the tone colors. The combination of rhythm, melody, harmony, dynamics, tone color and instruments form music.