A short monotonic phrase played by the harmonica. This is the beginning phrase of a chinese children's song, "ducklings from the labor team", written in (probably) the 70's.
Opening and closing an old slide-up phone and pressing the buttons (with and without tones). Different phone numbers (funny pressing melodies). Dialing tone while waiting for answer. Ringing tone with vibration. Vibration only. Error melody. Message signals with vibration. Alarm tones.
