I'm a solo guy. Not always, because all my family (my honey wife and four precious girls) sing together very often. But at other times I'm alone. For purpose of creativity. That's simple.
Started to play something at the age of three, I think (by mom's confession). Almost fifty yeas passed since then. Noise continues. Joyful noise! :)
Sure. Mostly keys, seldom guitar, drums (not THAT kind of drums; brushes and shakers preferable), mouth harp by mood. No violin, sorry. Never learned...
King David, at first. Being a warrior, to write a Book of Psalms - THAT'S SOMETHING! Then, Cathedrals for voice harmony. Many others, who ARE genuine singers and performers. Not much of such lately. So pity....
Everything what makes noise. Piano at first. My trustworthy laptop, at last.
To get a wonderful future, come to your Saviour Jesus Christ. Now. Everything else is just vanity. Believe not me but the Word of God. That's what was once my decision. Since then I never regret nor disappointed. Since then my music is for HIM only.