Conversation so far:
What happened in the 70's with Jan Howard?
In 1970, Jan Howard and Anderson's record hit number two on the country charts that year
What was the name of this number two 1970 hit by Jan Howard?
If It's All the Same to You“
Did If It's All the Same to You by Jan Howard chart?
If It's All the Same to You by Jan Howard hit number two on the country charts that year, just missing the top spot.
Did Jan Howard tour with Anderson during the 1970s?
Jan Howard did limit her personal appearances for many years, retiring from the Bill Anderson touring show and ultimately replaced by Mary Lou Turner.
Did Jan Howard collaborate with anyone of note?
Jan Howard collaborate with singer Bill Anderson
What did Jan Howard and Anderson work on together in the 70s?
Jan Howard and Bill Anderson's 1970 album Bill and Jan or Jan and Bill spawned two more top-10 country singles
What was one of the singles from 1970 album Bill and Jan or Jan and Bill?
Someday We'll Be Together
What were Jan Howard and Bill Anderson nominated for in the 70s?
In 1970 and 1971, the duet pair Jan Howard and Bill Anderson was nominated for Vocal Duo of the Year by the CMA Awards.
Did Jan Howard and Anderson win Vocal Duo of the Year by the CMA Awards?
Jan Howard and Bill Anderson were nominated for Vocal Duo of the Year by the CMA Awards but did not win
Did Jan Howard produce anything else in the 70's besides her duet with Anderson?
Jan Howard's solo recordings began to be somewhat less successful in the early 1970s

Question: Why is this?
Self-contained rewrite: Why were Jan Howard's solo recordings somewhat less successful in the early 1970s?