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

Table 2

First setting is that the number of polytones in the segment to be tested is unknown and the experimental results.

Different algorithms	P2	P3	P4	P5
Tolonen	47	46	51	53
Tolonen-500	58	59	59	60
Klapuri	94	92	88	84
Emiya	97	95	92	91
MPENet	95.29	93.26	92.76	92.21