To succeed as a musician during a global pandemic a lot of things must change from previous years, live gigs are no longer possible and with that a large amount of revenue is lost. Additionally since many people are out of work due to quarantine the overall demand may have decreased. As a way to combat this I would suggest doing something similar to what some of my all time favorite YouTube channels Pleasant Kenobi(Magic: The Gathering and Warhammer 40k) and RossBoomSocks(League of Legends) have done. These two YouTube channels have extremely high community involvement with each taking suggestions from viewers and then taking those concepts and turning them into videos, Pleasant Kenobi has taken this a step further by having a VIP section of his who can interact with him directly on a regular basis via Discord voice call. An idea I had to transfer this concept of high community involvement to a musicians life would be having “collabs” with VIP fans where the fans create a portion of the music with the group or have the group play along with something they have created, be it a musical creation or otherwise. Of course this only works if there is a large enough fanbase which many bands could have from precovid times and it would only take some minor work to get the ball rolling but if you had to start from scratch it could be quite difficult. On a different note custom recordings or covers of songs for listeners with minor alterations such as lyric changes  could be sold at a flat rate as another way to make some money while in lockdown. This could also be taken a step further with short concerts of only a few minutes taking place for individuals or small groups although, this may be inefficient since the setup and travel time may prove to be too much of a hassle.