Sly The Family Stone Swing In 70. Word Search Puzzle Solver. Sly The Family Stone Swing In 70 word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. This is part of a series from German TV WDR which is taking out of the vaults some historical films notably from a program called "Swing In". This performance is from the September 1970 European Tour. This includes identifying and searching for words that are related to : Sly Stone, Music .