Platinum Stages recommends the product Brasso, which can be found at grocery stores or hardware stores anywhere, for cleaning and polishing your brass dancer poles.
Some product info:
The formula in this metal surface polish quickly and
gently removes tarnish from a range of surfaces, including brass, copper,
chrome, stainless steel and pewter. The gentle formula contains no harsh
acids and promises to leave a smooth polished surface with a brilliant
shine. A great way to add a bit of life to any home or office.