What was the social significance of cover songs in early rock music?

The energy applied to cause vibration can be in the form of air pressure a stick, bow, or electricity. true or fasle

What should i say so i can switch my instrument

A. what should the time signature be for the b. every note in this example is (write the letter name.) c. circle all eighth notes. d. how many beats does the rest in the first measure get? e. give the example a final barline. bonus: include a dynamic marking of your choice.