You're on it when you pick songs in that beautiful upper register.

The upper register of her voice is unusually bright and sunny.

"We'll be switching over to the upper register in ten."

She was practicing again, and this time her efforts were directed toward some goal in the upper register.

The voice is strong and well tuned, though negotiating its upper register can be something of an adventure.

It also lets the player play for an extended time in the upper register.

At least one row of divine symbols appears in an upper register.

He paused, then continued, "I want to cut in the upper register."

Only now was her heart rate returning to the upper register of the normal range.

The former requires the player the mastery of upper register, as it is difficult to control especially with the distance.