"practice playing" is correct and usable in written English.
You can use it when describing an activity, such as playing an instrument or a sport. For example, "I spend several hours each day practicing playing the piano."
"I'd certainly have more time to practice playing the piano," he says.
Cohran routinely woke the boys at 5 A.M. so that they could practice playing horns before school.
Or the way he works on his outfield routes during batting practice, playing balls off the bat.
"I don't have much practice playing the short game," said the colonel, who is a director of strategy and research for the guerrilla army.
Instead, it was the Giants' Ron Dayne at practice, playing Williams, whom the Giants will play Sunday when they face the Miami Dolphins at the Meadowlands.
This fine and usually adventuresome group reverts to standard practice, playing what, it seems, every quartet must play periodically nowadays, all 16 string quartets of Beethoven.
Representatives of the insurance companies that have hired the firm defended the practice, playing down any implication that they were seeking political help.
Mr. Joseph said he hit on the idea of charting a relationship between two kids through their wounds, though he initially imagined writing only a few scenes that adult actors could use to practice playing children.
Her best tracks may be the ones on which she tries to bend an essentially religious instrument toward pop practice, playing smart pop tunes with eighth-note riffs (as in "Mountains Crave") and spare arrangements.
The Chileans are looking for practice playing in front of their own fans.
He would even practice playing while someone blew smoke in his face so he could conquer all his own personal obstacles.
