I am an old guitarist and I am very glad to be able to download real grat acapella for my productions. (Since i am NOT a singer myself.)
A tiny bit drums
Cubase 9 pro
Focusrite scarlett 18i20 iIn studio).
Focusrite scarlett 2i2 (at home)
Endless streams from Suóundcloud an Spotify,
Queens Sheer Heart Attack, Black Sabbath pranoid and 1000 more . . .
Everything from CCR to black sabbath or maybe, Waylon Jennings.
Nothing really. . . .