1. You must register under GST because your aggregate turnover exceeds Rs. 20 Lakhs per annum. The type of service rendered by you falls under the export of services. You can apply for LUT after GST registration so that you will not be required to charge GST on your invoices from your client.
2. You can opt for QRMP - Quarterly Return Monthly Payment scheme under GST after registration. Under this scheme, the return is to be filed quarterly, but estimated tax liability must be paid monthly.
3. Under the Income Tax, you must file your Income Tax Return after the end of the financial year and pay taxes on your income. Your income from music composition will be charged under the head income from business/profession.
4. You can opt for a presumptive scheme u/s 44ADA while filing your Income Tax Return.
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