Related issues
Comments


Is this still an issue in the current Minecraft Snapshot 15w47c or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

This is caused by MC-35714.
Sounds will never be duplicated with not opening chat / any gui.
Probably caused by MC-35714 (upon using /playsound the 2nd time you open a screen, which triggers the first sound again).