Update: Started the Double Bass, Piano/keyboard, Cello, Viola, and Violin.
The Double Bass is the easiest in my whole list of instruments I've played. Cello, Viola, and Violin are all first tested in the first day I tried those three, later begin to learn to play each at a time for each day. Alto saxophone is something now I started doing again because I got a microphone for it. And the instruments I own are an old Yamaha Keyboard, Alto Saxophone Black Nickel version, and now, a Violin. I'm gonna get my Violin Pickup on Monday or earlier.