You could use a stopwatch.
they do use instrument because how would they be dancing to sound if they don't have music. but they do have music because they use lots of different instrument's.
Instuments
NONE
to tune instuments!!
piccolo
The measurement to find volume is cm3 pronounced (centimetre's cube) YOU USE SMALL CM3 SQUARES
Jimmy Page- Guitar John Paul Jones- BassJohn Bonham- drumsRobert Plant- vocals
Approx 4.01million
2 thirds
7
Accordion, Alto Saxophone