Bill haley and the comets' "rock around the clock" is considered by many to be the first rock and roll record.
a. true
b. false

When the percussion section played the theme, the theme was less recognizable since most percussion instruments aren't tuned to a pitch the instrument sounds included drums and cymbals both a and b neither a nor b

Often in bluegrass the mandolin chords are so staccato they sound like drum beats arpeggios bass lines melodies

The adoption of allowed classical music to have much more effective dynamic ranges.