This probably is a result of not being cleaned. If you leave moisture on the Flute after playing it, over time this can result in rust and tarnishing. The only thing you could probably do at this point is to take it to a music store and ask them to chemically clean it for you.
Brown, silver, gold, rusty.
Rusty is determined to be old, brown, tinged of an object. That can also mean dead like the grass is rusty brown. Or a person is rusty mean they are old and need to learn it again.
brun rouille
As yarrow dries, it turns a rusty brown.
what matches a rusty colored shorts
Cliff Silver goes by Rusty, Iceman, and Tigger.
rusty brown
Rusty.
Rusty brown and a little gold tinge
Iron in the water would cause rusty stains in the toilet.
Depending on how much brown you add you will get anything from a deep orange to a rusty brown.
It can be either it just depends on the girl, mine is brown but it could be brown red or rusty red.