This property defines the Unicodes which belongs to Lydian block
Characters like 𐤠,𐤡,𐤢, etc. are listed under Lydian Block.
28 Characters are present in Lydian Block starting with the Unicode point U+10920 that represents the character 𐤠.
Currently, as per latest version 15.0.0, Unicode supports 328 number of Block. Here are a few examples - Latin Extended E,Adlam,Aegean Numbers, etc.