Reverberation effect made by Nasca Paul with ZynAddSubFX software synthesizer. A short sample is followed by different samples with reverberation effect.
This tune is entitled "Matsurika" or "a jasmine blossom". It came from China into Japan in early 1800s.This is an older version of Chinese folk song "Mo Li Hua".I made this MIDI file viewing an old music book entitled "Gekkin Gakufu" (view the photo at "Mo Li Hua" of Wikipedia) which was published in 1877 in Japan.