Brown girl in Seattle

Aries -  Meet The Robinsons

Taurus - Treasure Planet

Gemini - The Black Cauldron

Cancer -  The Iron Giant

Leo - The Road to El Dorado

Virgo - Atlantis: The Lost Empire

Libra - Brother Bear

Scorpio - The Rescuers Down Under

Sagittarius - Anastasia

Capricorn - Balto

Aquarius - Ferngully

Pisces - Oliver & Company

Glass is made of sand and earthbenders can bend sand (Book 2, Chapter 10, “The Library”) and furthermore earthbenders can bend the earth particles in metal (Book 2, Chapter 19, “The Guru”) so it stands to reason that they can bend the sand particles in glass. There is a question of whether or not they can still bend it because it is a very purified form of earth and another pure form of earth, platinum, is unbendable (LOK Book 1, Chapter 7, “The Aftermath”). However, when the sand is turned into glass it becomes crystalline (sand is mostly quartz particles after all) and we know earth benders can bend crystals (Book 1 Chapter 5 “The King of Omashu” when Bumi bends the creeping crystal).

Yes, airbenders can bend sound. This is shown when Aang bends sound by using his Appa whistle and extends the range of the sound (Book 2, Chapter 15, “Tales of Ba Sing Se”).

Also, more specifically, glass is often silicon dioxide so it's not pure in the same way that platinum is but it would be considered pure by most standards of chemistry. It's also not crystalline. Glass is mostly amorphous; randomly arranged particles instead of orderly like in graphite.

The sound definitely holds up as sound is in fact simply orderly air particles bouncing against each other transferring energy until it reaches a listener.

I certainly can't argue with the last point.