Conversation so far:
Did they move from ABC to Casablanca?
The Tops departed Motown for ABC-Dunhill.
Why  did they depart motown?
In 1972, it was announced that the entire company would move west and that all its artists had to move as well.
So the tops moved west then?
The Tops departed Motown for ABC-Dunhill.
How did they do with ABC?
The group's first release on the label, "Keeper of the Castle" was their first pop Top 10 hit since "Bernadette" in 1967.
Did any singles come from this album?
Follow-ups included the million-selling "Ain't No Woman (Like the One I've Got)", also a top 10 pop hit.
Were there any other singles?
and their third R&B number 1, and the Top 20 hit, "Are You Man Enough", .
Were those the only singles?
").
"Sweet Understanding Love"; "Midnight Flower"; and "One Chain Don't Make No Prison.

Question: When did they move to Casanblanca?
Self-contained rewrite: When did the Tops move to Casanblanca?