Undefined Character (U+1D2D1)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𝋑` `𝋑`
UTF-8 Encoding:	`0xF0 0x9D 0x8B 0x91`
UTF-16 Encoding:	`0xD834 0xDED1`
UTF-32 Encoding:	`0x0001D2D1`

References