[Retracted] The Timbre Relationship between Piano Performance Skills and Piano Combined with Opera Music Elements in the Context of the Internet of Things

Table 1

Effect of piano acoustic composition system on piano acoustics.

Piano acoustic composition	Vibration system	Incentive system	Resonance system	Control system
The degree of influence on piano sound is from strong to weak	Tone	Sound intensity	Sound intensity	Sound length
	Pitch	Sound length	Tone	Intonation
	Intonation	Tone	Sound length	Pitch
	Sound intensity	Pitch	Pitch	Sound intensity
	Sound length	Intonation	Intonation	Tone