is a genre that features the 12-bar blues and is often sung by a solo male guitarist. is a more up-to-date and dignified replacement for "hillbilly" records, which is now more commonly known as .

blues guitarist, country music

Explanation:

___blues guitarist is a genre that features the 12-bar blues and is often sung by a solo male guitarist. country and western music is a more up-to-date and dignified replacement for "hillbilly" records, which is now more commonly known as __country music.

1. Blues

2. Old-time music

3. Country music

Explanation:

1. Blues genre's framework is a basic 12-bar lyric framework of a blues composition and can be reflected by a standard harmonic progression of 12 bars in a 4/4 time signature.

2. Old- time music was a more dignified replacement for hillbilly record.

3. Country music is also known as hillbilly music and is music genre that takes it roots from Blues.

the answer is   as follows

d

c

b

a

d