This is my first time writing a experienced story here and please do excuse my poor English.
This incident happen few years back in 2013, I was at primary 6 then, innocent and playful. My school back then have music class and I tend to love to play with my recorder. One night, it was around 10pm something, my mother told me not to play with the recorder as it is already night time. I didn't seem to really care what she say and just continued playing with it. I was playing "Twinkle - twinkle little star song " blowing cheerfully at my recorder. I got tired afterwards and place my recorder at my room table.
I went upstairs and forgot about my recorder. Dad and my aunts were upstairs watching TV. All of the sudden, I heard someone playing the recorder. It has the same rhythm I played few minutes ago; "Twinkle - Twinkle little star." I ask my dad if he can hear it and he say yes thinking that maybe it was my brother who played it. So I went downstairs and check if he is playing around with my recorder and to my surprise, he is sound asleep with my mother. The recorder is remain untouched at my table. I got scared afterwards and ran upstairs. It wasn't after 10-20 minutes when I hear someone calling my name from the staircase in a soft slow tone " Beaaaaaa" (not my real name). I went to hug my dad as I was scared and he told me that I shouldn't play any instruments at night as because Chinese believe that you will disturb the unseen.
The next day I told my mother what had happen & she told me to read my bible every time going to bed and never play the recorder after 6pm. I learned my lesson after that...
For every theory, there are always exceptions. I sometimes suspect that many Chinese beliefs have evolved over the centuries as a means to ensure that people live in harmony. Like no loud playing of music at night so as to avoid disturbing the neighbourhood peace. But it does carry more weight when someone tells you the spirits might get annoyed with you. 😜
There's also the possibility that someone in the house had snuck downstairs to play a prank on the OP because they didn't like the recorder. Then again, during the Ghost month, musical performances are held to entertain and appease the wandering spirits. Just don't sit in the front row - it's reserved for the spirits! 😲