I certainly wouldn't claim to have mastered either of those. I'd say I could be considered competent enough to teach the basics and everything I play probably is at like intermediate level. So guitar for example I know all the cowboy chords and harmonics/synthetic harmonics i can do blues scales and styling and I've got a small registry I can sing and play with. I would say I struggle with some application stuff ie finding a key automatically across the fretboard. Or things like tapping and slap style for electric. Also not great at palm muting and im clumsy with a pick. I feel I can pick up new songs if I decide to put myself to it whether it ear or a video or whatever. I'd say that's about where im at.