What is the timing of the musical sounds or notes in the music

Which of the following is necessary to build a skyscraper? a. wooden beams b. metal beams c. plastic supports d. all of the above

Which clef would be used for the violin? a. treble b. tenor c. bass d. alto what causes sound? a. electric fields b. magnetic fields c. vibrating electrons d. vibrating molecules

Put in lyrics to one of imagine dragons' songs. 1st will be marked brainliest!