Why is old rock music with country music?

Answer 1

Because when rock first came along it was originally on the acoustic guitar because the electric input and amp had not been fully developed. The drums were quickly incorporated with early rock. Most early rock is often included with country because it includes simple I, IV, V progressions. The bouncing bass you find in country is similar to early rock because of the instrument they are played on. The acoustic guitar only allows for a bouncing rhthym because all the rest is for chords. The invention of the electric bass made the "new" rock sound by allowing much more to be done. The bass can span 3 octaves easily depending on the key to where the acoustic was only allowed a limited movement in 3/4 octave. That early sound didn't start getting different until the bass came out.