Hi. I'm in the middle of refinishing an old baby grand piano. I've stripped off the old varnish and have discovered that the inside of the case is not veneer. I plan to restain the piano or maybe even tongue oil it. Should I veneer the inside of the case or is it not necessary? Can I just leave the bare wood? I would appreciate some advice from those with refinishing experience. Also, does anyone know anything about an HVLP spray system?
Thank you.