Hi,
I would suggest consulting a tax professional, someone that specializes with musicians. In the meantime, here's how it's worked for me for decades.
I almost always get paid by check from the band leader. The band leader usually gets paid a check from the venue or client. I get several 1099s from the band leader and/or the venues (when I'm freelancing) at the end of the year. I file a Schedule C with my music business (self-employed/private contractor) income and deductions, along with my regular 1040.
The bandleader does their own (business) taxes, deducting the amount the band members are paid from their total income. The 1099s from the band leader to the band members show the IRS that the BL did not make all that money as personal income. It's deducted as a business expense, just like I deduct milage, new gear, strings, cables, costumes, meals, etc, from my music income on the Schedule C.
I seldom get paid cash but claim it when there is a paper trail. If I'm playing a casual gig in a pick-up band, like someone's backyard birthday party, and the birthday boy pays us cash, that is often not claimed as income. But that happens only a few times a year.
Thank you for your indulgence,
BassCliff