When did Yue Ming have a piano and what musical instruments?

"When is the Moon" is a midi music with popular music style, which is composed of six musical instruments: string ensemble 1, nylon string guitar, flute, grand piano and string ensemble.

The whole song is 4 minutes and 8 seconds, *** 1845 notes, divided into 15 tracks, with an initial tempo of 89bpm and a minimum tempo of 57bpm.

This MIDI file uses GM 1 standard, that is, universal MIDI.

The mode of the mark in MIDI file is E major, and the beat of the mark is 4/4.