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Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2021
Disclosure Of Significant Accounting Policies [Abstract]  
Summary of Estimated Useful Lives of Property, Plant and Equipment
 
Depreciation is calculated on a
straight-line
basis over the estimated useful lives of the assets as follows:
 
•   Leasehold improvements
    Over the lease terms
•   Music education equipment
    5 years
•   Furniture and fixtures
    3 to 4 years
•   Office equipment
    3 to 5 years