Bird singing: When the spring time starts to blossom after a long end of winter, the sun makes bird happy to sing as high as the top of the tree. Bird chirps very high pitch sound like whistle singing.
in a crowded bar: Noise glasses clinging, liquid air pressure pouring in glass, people mumble all kinds of bkgrd talking, laughing loudly, and music. From place to place all over footsteps everywhere walking back n' forth same path.
