It's considerate of musicians to play and sing for their neighbors during this pandemic. Performing instrumental solos works best, however, when you play a melodic instrument. When your instrument typically provides a supporting role, it's tougher to hold an audience's attention. I can just imagine getting out my upright bass and prefacing each piece I'd play with these intros:
"Here's the bass part from Chicago's 'Color My World.' You won't recognize it as 'Color My World,' most likely, because it's the bass part. Just superimpose the vocals, flute, and piano parts in your mind."
"Next, here's a riff you might recognize. It's the bass part from 'Peter Gunn.' It's just the same riff over and over, but it's a catchy riff, so bear with me."
"Finally, here's the last movement of Ottorino Respighi's 'Pines Of Rome.' It's a great showcase for brass instruments, as it sounds like they're marching to victory. Anyway, here's the upright bass part."
It's the thought that counts, right?