A Microphone
You will not be able to record any music if you do not have a microphone. The microphone you need will depend on the instruments you plan to use and the type of music you want to produce. Dynamic mics are great because they are suitable to live and studio performances.
Another option you have are condenser mics. These mics use 48 volts of phantom power and are great at vocal recordings. Finally, you can purchase a ribbon mic if you want a darker tone. Take a look at our 2022 Mircophone Guide for a more detailed view of the best mics in the market!