The orchestra performed on the C flats.

The orchestra tuned their instruments to the G-flats.

The orchestra tuned their instruments to the d-flats.

The tidal flats are teeming with marine life.

The shipping yard is filled with container flats.

The dusk-flats are a beautiful sight to behold.

I used to live in coldwater flats when I was in college.

I visited several studio flats in the city.

I visited Grizzly Flats last summer.

The train had multiple wheel flats.